BARBARAT J., GILLOT J., ALVAREZ MARTINEZ H., LE TARGAT R., POTTIE P.-E., HRABINA J., PHAM M.-T., TUCKEY PH. and ACEF O., “Linear Zeeman effect on iodine-based frequency stabilized Laser”, 2019 Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum (EFTF/IFC), SPIE, 2019, 1-3, DOI: 10.1016/j.nds.2019.01.003.

BARBARAT J., GILLOT J., ALVAREZ-MARTINEZ H., LOURS M., HOLLEVILLE D., LE TARGAT R., POTTIE P.-E., WOLF P., TUCKEY PH., ACEF O., ESNAULT F.-X. and LEVEQUE T., “Compact and transportable iodine frequency-stabilized laser”, Proceedings of International Conference on Space Optics (ICSO 2018), Vol. 11180, SPIE, 2019, 11180, DOI: 10.1117/12.2535948.

BIZE S., “The unit of time: Present and future directions”, Comptes rendus Physique de l'Académie des sciences, 2019, 20, 1-2, 153-168, DOI: 10.1016/j.crhy.2019.02.002.

BONNIN A., SOLARO C., ALAUZE X. and PEREIRA DOS SANTOS F., “Magic density in a self-rephasing ensemble of trapped ultracold atoms”, Phys. Rev. A., 2019, 99, 023627, DOI: 10.1103/PhysRevA.99.023627.

BRAZHNIKOV D., IGNATOVICH S., VISHNYAKOV V., BOUDOT R. and SKVORTSOV M., “Electromagnetically induced absorption scheme for vapor-cell atomic clock”, Optics Express, 2019, 27, 25, 36034-36045, DOI: 10.1364/OE.27.036034.

BRAZHNIKOV D., PETERSEN M., COGET G., PASSILLY N., MAURICE V., GORECKI CH. and BOUDOT R., “Dual-frequency sub-Doppler spectroscopy: Extended theoretical model and microcell-based experiments”, Physical Review A, 2019, 99, 6, 062508, DOI: 10.1103/PhysRevA.99.062508.

BUSHEV P.A., BOURHILL J., GORYACHEV M., KUKHARCHYK N., IVANOV E., GALLIOU S., TOBAR M.E. and DANILISHIN S., “Testing of generalized uncertainty principle with macroscopic mechanical oscillators and pendulums”, Physical Review D, 2019, 100, 6, 066020, DOI: 10.1103/PhysRevD.100.066020.

CALDANI R., MERLET S., PEREIRA DOS SANTOS F., STERN G., MARTIN A.-S., DESRUELLE B. and MÉNORET V., “A prototype industrial laser system for cold atom inertial sensing in space”, European Physical Journal D, 2019, 73, 248, DOI: 10.1140/epjd/e2019-100360-2.

CALDANI R., WENG K.X., MERLET S. and PEREIRA DOS SANTOS F., “Simultaneous accurate determination of both gravity and its vertical gradient”, Physical Review A, 2019, 99, 033601, DOI: 10.1103/PhysRevA.99.033601.

CALOSSO C.E., RUBIOLA E. and CARDENAS OLAYA C., “Phase-noise and amplitude-noise measurement of DACs and DDSs”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 67, 2, 431-439, DOI: 10.1109/TUFFC.2019.2943390.

CARDENAS OLAYA C., CALOSSO C., FRIEDT J.-M., MICALIZIO S. and RUBIOLA E., “Phase noise and frequency stability of the red-Pitaya internal PLL”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 66, 2, 412-416, DOI: 10.1109/TUFFC.2018.2883830.

CARVALHO N.C., BOURHILL J., GORYACHEV M., GALLIOU S. and TOBAR M.E., “Piezo-optomechanical coupling of a 3D microwave resonator to a bulk acoustic wave crystalline resonator”, Applied Physics Letters, 2019, 115, 21, 211102, DOI: 10.1063/1.5127997.

CONDON G., RABAULT M., BARRETT B., CHICHET L., ARGUEL R., ENERIZ-IMAZ H., NAIK D., BERTOLDI A., BATTELIER B., BOUYER PH. and LANDRAGIN A., “All-optical Bose-Einstein condensates in microgravity”, Physical Review Letters, 2019, 123, 240402, DOI: 10.1103/PhysRevLett.123.240402.

COURNOL A., MANCEAU M., PIERENS M., LECORDIER L., TRAN D.B.A., SANTAGATA R., ARGENCE B., GONCHAROV A., LOPEZ OLIVIER, ABGRALL M., LE COQ Y., LE TARGAT R., MARTÍNEZ H.Á., LEE WON-KYU, XU D., POTTIE P.-E., HENDRICKS R.J, WALL T.E, BIENIEWSKA J.M., SAUER B.E., TARBUTT M R, AMY-KLEIN A., TOKUNAGA S.K. and DARQUIÉ B., “A new experiment to test parity symmetry in cold chiral molecules using vibrational spectroscopy”, Quantum Electronics, 2019, 49, 3, 288-292, DOI: 10.1070/qel16880.

DELVA P., DENKER H. and LION G., “Chronometric geodesy: methods and applications”, Relativistic Geodesy, Serie: Foundamental theories of physics, vol. 196, Springer, 2019. DOI: 10.1007/978-3-030-11500-5_2, ISBN: 978-3-030-11499-2.

DURDAUT PH., HÖFT M., FRIEDT J.-M. and RUBIOLA E., “Equivalence of open-loop and closed-loop operation of SAW resonators and delay lines”, Sensors, 2019, 19, 1, 185, DOI: 10.3390/s19010185.

DURDAUT PH., KITTMANN A., RUBIOLA E., FRIEDT J.-M., QUANDT E. and KNÖCHEL R., “Noise analysis and comparison of phase- and frequency-detecting readout systems: Application to SAW delay line magnetic field sensor”, IEEE Sensors Journal, 2019, 19, 18, 8000-8008, DOI: 10.1109/JSEN.2019.2914965.

EVRARD A., MAKHALOV V., CHALOPIN T., SIDORENKOV L.A, DALIBARD J., LOPES R. and NASCIMBENE S., “Enhanced magnetic sensitivity with non-gaussian quantum fluctuations”, Physical Review Letters, 2019, 122, 173601, DOI: 10.1103/PhysRevLett.122.173601.

FENG W., GOAVEC-MEROU G., FRIEDT J.-M. and SATO M., “Passive radar delay and angle of arrival measurements of multiple acoustic delay lines used as passive sensors”, IEEE Sensors Journal, 2019, 19, 2, 594-602, DOI: 10.1109/JSEN.2018.2872867.

GARRIDO ALZAR C.L., “Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study”, AVS Quantum Science, 2019, 1, 014702, DOI: 10.1116/1.5120348.

GOMBÉ B.O., GOAVEC-MEROU G., BRESCHI K., GUYENNET H., FRIEDT J.-M., FELEA V. and MEDJAHER K., “A SAW wireless sensor network platform for industrial predictive maintenance”, Journal of Intelligent Manufacturing, 2019, 30, 4, 1617-1628, DOI: 10.1007/s10845-017-1344-0.

GORYACHEV M., GALLIOU S. and TOBAR M.E., “Observation of low-temperature magnetomechanic effects in crystalline resonant phonon cavities”, Physical Review B, 2019, 100, 17, 174108, DOI: 10.1103/PhysRevB.100.174108.

JIANG Z., ZHANG V., PARKER T.E., PETIT G., HUANG Y.-J., PIESTER D. and ACHKAR J., “Improving Two-Way Satellite Time and Frequency Transfer with redundant links for UTC generation”, Metrologia, 2019, 56, 2, 025005, DOI: 10.1088/1681-7575/aafced.

JUNCA J., BERTOLDI A., SABULSKY D.O., LEFÈVRE G., ZOU X., DECITRE J.-B., GEIGER R., LANDRAGIN A., GAFFET S., BOUYER P. and CANUEL B., “Characterizing Earth gravity field fluctuations with the MIGA antenna for future gravitational wave detectors”, Physical Review D, 2019, 99, 104026, DOI: 10.1103/PhysRevD.99.104026

KOKE S., KUHL A., WATERHOLTER T., RAUPACH S.M.F., LOPEZ O., CANTIN E., QUINTIN N., AMY-KLEIN A., POTTIE P.-E. and GROSCHE G., “Combining fiber Brillouin amplification with a repeater laser station for fiber-based optical frequency dissemination over 1400 km”, New Journal of Physics, 2019, 21, 12, 123017, DOI: 10.1088/1367-2630/ab5d95.

LANTZ E., CALOSSO C.E., RUBIOLA E., GIORDANO V., FLUHR CH., DUBOIS B. and VERNOTTE F., “KLTS: A rigorous method to compute the confidence intervals for the three-cornered hat and for Groslambert covariance”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 66, 12, 1942-1949, DOI: 10.1109/TUFFC.2019.2931911.

MARTIN J.-M., BADE S., DUBOSCLARD W., KHAN M.A., KIM S., GARRAWAY B.M. and GARRIDO ALZAR C.L., “Pumping ydnamics of cold-atom experiments in a single vacuum chamber”, Physical Review Applied, 2019, 12, 014033, DOI: 10.1103/PhysRevApplied.12.014033.

PANFILO G. and ARIAS F., “The Coordinated Universal Time (UTC)”, Metrologia, 2019, 56, 4, 042001, DOI: 10.1088/1681-7575/ab1e68.

RIEDEL F., AL-MASOUDI A., BENKLER E., DÖRSCHER S., GERGINOV V., GREBING C., HÄFNER S., HUNTEMANN N., LIPPHARDT B., LISDAT C., PEIK E., PIESTER D., SANNER C., TAMM CH., WEYERS S., DENKER H., TIMMEN L., VOIGT C., CALONICO D., CERRETTO G., COSTANZO G.A., LEVI F., SESIA I., ACHKAR J., GUÉNA J., ABGRALL M., ROVERA D., CHUPIN B., SHI C., BILICKI S., BOOKJANS E., LODEWYCK J., LE TARGAT R., DELVA P., BIZE S., BAYNES F.N., BAYNHAM C.F.A., BOWDEN W., GILL P., GODUN R.M., HILL I.R., HOBSON R., JONES J.M., KING S.A, NISBET-JONES P.B.R., ROLLAND A., SHEMAR S.L., WHIBBERLEY P.B. and MARGOLIS H.S., “Direct comparisons of European primary and secondary frequency standards via satellite techniques”, Physics, Instrumentation and Detectors, oct. 2019, DOI: arXiv:1910.06736v1.

ROVERA G.D., SICCARDI M., RÖMISCH S. and ABGRALL M., “Time delay measurements: estimation of the error budget”, Metrologia, 2019, 56, 3, DOI: 10.1088/1681-7575/ab14bb.

SANTAGATA R., TRAN D.B.A., ARGENCE B., LOPEZ O., TOKUNAGA S.K., WIOTTE F., MOUHAMAD H., GONCHAROV A., ABGRALL M., LE COQ Y., ALVAREZ MARTINEZ H., LE TARGAT R., LEE W.-K., XU D., POTTIE P.-E. DARQUIÉ B. and AMY-KLEIN A., “High-precision methanol spectroscopy with a widely tunable SI-traceable frequency-comb-based mid-infrared QCL”, Optica, 2019, 6, 4, 411, DOI: 10.1364/OPTICA.6.000411.

SHUKER M., POLLOCK J.W., BOUDOT R., YUDIN V.I, TAICHENACHEV A.V., KITCHING J. and DONLEY E.A., “Reduction of light shifts in Ramsey spectroscopy with a combined error signal”, Applied Physics Letters, 2019, 114, 14, 141106, DOI: 10.1063/1.5093921.

SHUKER M., POLLOCK J.W., BOUDOT R., YUDIN V.I., TAICHENACHEV A.V., KITCHING J. and DONLEY E.A., “Ramsey spectroscopy with displaced frequency jumps”, Physical Review Letters, 2019, 122, 11, 113601, DOI: 10.1103/PhysRevLett.122.113601.

TRIMECHE A., BATTELIER B., BECKER D., BERTOLDI A., BOUYER PH., BRAXMAIER C., CHARRON E., CORGIER R., CORNELIUS M., DOUCH K., GAALOUL N., HERRMANN S., MÜLLER J., RASEL E.M., SCHUBERT CH., WU H. and PEREIRA DOS SANTOS F., “Concept study and preliminary design of a cold atom interferometer for space gravity gradiometry”, Classical and Quantum Gravity, 2019, 36, 21, 215004, DOI: 10.1088/1361-6382/ab4548.

UHRICH P., ABGRALL M., RIEDEL F., CHUPIN B., ACHKAR J. and ROVERA D., “A powerful signal nearby L1 frequency band jamming GNSS stations in Observatoire de Paris”, ITU Journal: ICT Discoveries, 2019, 2, 1, https://www.itu.int/en/journal/2019/001/Pages/01.aspx.

VERNOTTE F. and LANTZ E., “Three-cornered hat and Groslambert covariance: A first attempt to assess the uncertainty domains”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 66, 3, 643-653, DOI: 10.1109/TUFFC.2018.2889703.

VICARINI R., ABDEL HAFIZ M., MAURICE V., PASSILLY N., KROEMER E., RIBETTO L., GAFF V., GORECKI CH., GALLIOU S. and BOUDOT R., “Mitigation of temperature-induced light-shift effects in miniaturized atomic clocks”, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, 2019, 66, 12, 1962-1967, DOI: 10.1109/TUFFC.2019.2933051.

WITTROCK S., TSUNEGI S., YAKUSHIJI K., FUKUSHIMA A., KUBOTA H., BORTOLOTTI P., EBELS U., YUASA S., CIBIEL G., GALLIOU S., RUBIOLA E. and CROS V., “Low offset frequency 1/f flicker noise in spin-torque vortex oscillators”, Physical Review B, 2019, 99, 23, 235135, DOI: 10.1103/PhysRevB.99.235135.

ROVERA D., SAMAIN E., TORRE J.-M., COURDE C., BELLI A., EXERTIER P., UHRICH P., ABGRALL M. and GUILLEMOT Ph., “Nine years of operation of Time Transfer by Laser Link (T2L2)”, International Technical Meeting (ITM) and 50th Precise Time and Time Interval Meeting (PTTI), Reston, VA, USA, 28-31 January 2019.

ROVERA D., ABGRALL M., RIEDEL F., UHRICH P., DEFRAIGNE P., BERTRAND B., TORRE J.-M. and COURDE C., “Biases introduced by multi-path effects on time transfer with GNSS receivers”, International Technical Meeting (ITM) and 50th Precise Time and Time Interval Meeting (PTTI), Reston, VA, USA, 28-31 January 2019.

GORECKI CH., MAURICE V., BOUDOT R., BARGIEL S., PASSILLY N., CHUTANI R.K., VICARINI R. and GALLIOU S., “Advanced microfabrication technologies for miniature caesium vapor cells for atomic clocks”, SPIE OPTO 2019, San Francisco, CA, USA, vol. 10934, 109342F, 2-7 February 2019.

LANDRAGIN A., “Commercial atom quantum technologies: Academic developments from SYRTE”. COST action AtomQT, 1^st European Quantum Technologies Conference (EQTC), European Quantum Flagship, Grenoble, France, 18-22 février 2019.

LANDRAGIN A., PEREIRA DOS SANTOS F., ABSIL L., ALAUZE X., ALTORIO M., BEAUFILS Q., BORDÉ C., CALDANI R., DENG X., DUBOSCLARD W., GARRIDO ALZAR C., GAUTIER R., GEIGER R., KARCHER R., KIM S., MARTIN J.-M., MERLET S. and SIDORENKOV L., “Atom Interferometry for high sensitivity inertial measurements”, 1^st European Quantum Technologies Conference (EQTC), European Quantum Flagship, Grenoble, France, 18-22 février 2019.

MERLET S., KARCHER R., CALDANI R., WANG K. and PEREIRA DOS SANTOS F., “Quantum absolute sensors for gravity measurements”, 1^st European Quantum Technologies Conference (EQTC), European Quantum Flagship, Grenoble, France, 18-22 février 2019.

BIZE S., « Les références de fréquence et de temps aujourd’hui et dans le futur », Conférences mensuelles du Bureau des Longitudes, Ecole Normale Supérieure, Paris, France, 6 mars 2019.

MERLET S., “New kilogram definition in the revised SI”, Séminaire LPSC, Grenoble, France, 19 mars 2019.

ACEF O., BARBARAT J., TUCKEY PH. and WOLF P., “Compact and ultra stable infrared lasers for ground tests of the LISA mission payload”, Rencontres de Moriond, La Thuile, Valle d'Aosta, Italy, 23-30 March 2019.

GEIGER R., ALTORIO M., GAUTIER R., SIDORENKOV L.A. and LANDRAGIN A., “High-stability cold-atom gyroscope”, 5^es Journées Micro & Nano Technologies pour l'Inertiel, DGA-ONERA, Palaiseau, France, 26-27 mars 2019.

CALDANI R., WENG K., MERLET S., PEREIRA DOS SANTOS F., “AtoMIc Gravi-GradiOmeter AMIGGO”, Quantum Information and Measurement V: Quantum Technologies, Rome, Italia, 4-6 April 2019.

CHENG Y., HANSEN A., SHUKER M., BOUDOT R., KITCHING J. and DONLEY E.A., “Simultaneous multi-axis inertial sensing with point source interferometry”, 2019 NASA Fundamental Physics and Quantum Technology Workshop, Washington D.C., USA, 8-10 April 2019.

BIZE S., “Status of optical clocks and prospects for chronometric geodesy - Modern Concepts for Gravimetric Earth Observation”, General Assembly of European Geosciences Union (EGU), Vienna, Austria, 7-12 April 2019.

COOKE A-K., CHAMPOLLION C., VERMULEN P., JANVIER C., DESRUELLE B., LE MOIGNE N. and MERLET S., “Can vertical gravity gradients monitor seasonal soil moisture dynamics” , General Assembly of European Geosciences Union (EGU), Vienna, Austria, 7-12 April 2019.

LANDRAGIN A., ALTORIO M., SAVOIE D., GAUTIER R., SIDORENKOV L.A., BESS F. and GEIGER R., “Interleaved matter-wave gyroscope with 3×10^-10 rad⸱s^-1 stability”, General Assembly of European Geosciences Union (EGU), Vienna, Austria, 7-12 April 2019.

PEREIRA DOS SANTOS F. “Space gravimetry with atomic quantum sensors”, General Assembly of European Geosciences Union (EGU), Vienna, Austria, 7-12 April 2019.

PEREIRA DOS SANTOS F., KARCHER R. and MERLET S., “Improving the accuracy of cold atom gravimeters using ultracold atoms”, General Assembly of European Geosciences Union (EGU), Vienna, Austria, 7-12 April 2019.

ALTORIO M., GAUTIER R., SAVOIE D., SIDORENKOV L.A., GEIGER R. and LANDRAGIN A., “Interleaved atom interferometry for high sensitivity inertial measurements”, 13^th European Conference on Atoms, Molecules and Photons (ECAMP13), Florence, Italy, 8-12 April 2019.

BEAUFILS Q., “MIGA: a large scale atom interferometer for gravity measurements”, 13^th European Conference on Atoms, Molecules and Photons (ECAMP13), Florence, Italy, 8-12 April 2019.

BRAZHNIKOV D., PETERSEN M., COGET G., PASSILLY N., MAURICE V., GORECKI CH. and BOUDOT R., “Investigations for a miniature optical frequency reference based on high-contrast sub-Doppler resonance in a MEMS Cesium vapor cell”, 13^th European Conference on Atoms, Molecules and Photons (ECAMP13), Florence, Italy, 8-12 April 2019.

FOUCAULT Y., VALLET G., ALVES B.X.R. and LODEWYCK J., “Systematic effects in strontium optical lattice clocks”, 13^th European Conference on Atoms, Molecules and Photons (ECAMP13), Florence, Italy, 8-12 April 2019.

ABGRALL M., BIZE S., CHUPIN B., GUÉNA J., LAURENT PH., LORINI L., UHRICH P. and ROVERA D., “UTC(OP) based on the LNE-SYRTE atomic fountains: improvements in the algorithm”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

ALVES B.X.R., VALLET G., FOUCAULT Y., LE TARGAT R. and LODEWYCK J., “Background gas collision frequency shift on lattice-trapped strontium atoms”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019, DOI: 10.1109/FCS.2019.8856042.

BOUVIER A., YUN P., CALOSSO C., MICALIZIO S., ABDEL H.M., BOUDOT R., TRICOT F., DE CLERCQ E. and GUÉRANDEL S., “Investigations on the frequency stability of the Double-Modulation CPT clock”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

BOUVIER A., YUN P., TRICOT F. , CALOSSO C., MICALIZIO S., ABDEL H.M., BOUDOT R. and DE CLERCQ E., “Investigations on the mid-term frequency stability of the double-modulation CPT clock”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

CAMBIER V., GUO C., CALVERT J., DE SARLO L. and BIZE S., “Towards using a 2D magneto-optical trap to improve a mercury optical latice clock”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

CHEN Y.-J., HANSEN A., BOUDOT R., SHUKER M., IVANOV E., HOTH G., PELLE B., KITCHING J. and DONLEY E.A., Two-dimensional rotation measurement with point source interferometry”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

DENIS S., MARECHAL B., GOAVEC-MEROU G., MILLO J. and BOURGEOIS P.-Y., “Progress and undersampling in digital optical frequency control”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

ELEHAYE M., GROULT L., LAUPRÊTRE T., KUMAR A., ACHI B., SOUIDI M., BIGLER E., MILLO J., BOURGEOIS P.-Y., KERSALÉ Y. and LACROÛTE C., “Progress on a surface-electrode ion trap for optical frequency metrology”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

HANSEN A., CHEN Y.-J., SHUKER M., BOUDOT R., IVANOV E., HOTH G., PELLE B., KITCHING J. and DONLEY E.A., “Performance of a point source atom interferometer gyroscope”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

MC GILLIGAN J., MOORE K., BOUDOT R., GRIFFIN J., ARNOLD A.S., SHUKER MOSHE, RIIS E., DONLEY E.A. and KITCHING J., “Two-photon imaging of a magneto-optical trap in a microfabricated cell for cold atom sensors”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

PANFILO G., HARMEGNIES A., TAVELLA P., ABGRALL M., ROVERA D. and BAUCH A., “The analysis of long term instability of UTC: a case study”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

PETERSEN M., COGET G., MAURICE V., GORECKI CH., PASSILLY N., BRAZHNIKOV D. and BOUDOT R., “Exploring dual-frequency sub-Doppler spectroscopy for a Cs microcell-based optical frequency reference”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

ROSENZIVEIG K., BON J., ABBÉ PH., SOUMANN V., PASSILLY N., GALLIOU S. and COHADON P.-F., “Quartz crystal resonator used as an optical Fabry-Perot cavity”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

ROVERA D., ABGRALL M., RIEDEL F., UHRICH P., BERTRAND B., DEFRAIGNE P. and TORRE J.-M., “Detection of biases introduced by multi-path effects on GNSS receivers”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

SAVOIE D., ALTORIO M., FANG B., SIDORENKOV L.A., GEIGER R. and LANDRAGIN A., “Interleaved atom interferometry for high sensitivity inertial measurements”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

SCHMEISSNER R., TRICOT F., COTXET J., BALDY M., MUEHLBERGHUBER M., ROMER A.K., CHASTELLAIN F., COPPOOLSE W.W. and GUÉRANDEL S., “Optically Pumped Space Cs Clock TRL5”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

SHUKER M., POLLOCK J.W., KITCHING J., DONLEY E.A., BOUDOT R., YUDIN V. and TAICHENACHEV A., “Light-shift suppression with novel variants of adaptive Ramsey spectroscopy”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

THAI TUNG T., SESIA I., ROVERA D. and ACHKAR J., “Characterization of SATRE modem delays for multi-collocated TWSTFT stations”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

VERNOTTE F. and LANTZ E., “Confidence intervals for three- cornered hat and Groslambert covariance estimates”, IEEE International Frequency Control Symposium and European Frequency and Time Forum (IFCS-EFTF 2019), Orlando, USA, 14-18 avril 2019.

ACEF O., « Sources laser stabilisées en fréquence sur l’iode moléculaire en cellule », Journées scientifiques de l'Action Spécifique GRAM, Journées SF2A 2019, Nice, France, 14-17 mai 2019.

MOORE K., MC GILLIGAN J., BOUDOT R. and KITCHING J., “Progress toward a chipscale MOT”, 50th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics (DAMOP 2019), Milwaukee, Wisconsin, USA, vol. 64, 4, D05.5, 27-31 May 2019.

COTXET J., TRICOT F., PHUNG D.-H., GUTTY F., BAILI G., LOURS M., HOLLEVILLE D., DE CLERCQ E., GUÉRANDEL S., NOUCHI P. and DOLFI D., “Toward a compact cesium CPT clock using a dual-frequency VECSEL”, GRC Conference on Quantum Sensing “Quantum sensing applications in metrology and imaging”, Hong Kong, 2-7 June 2019.

GEIGER R., ALTORIO M., GAUTIER R., SIDORENKOV L.A. and LANDRAGIN A., “Precision inertial measurements with cold-atom interferometers”, GRC Conference on Quantum Sensing “Quantum sensing applications in metrology and imaging”, Hong Kong, 2-7 June 2019.

PEREIRA DOS SANTOS F., « Gradiomètre atomique », Programme RTS SU1 Physique fondamentale du CNES, Paris, France, 6 juin 2019.

BIZE S., « Echelles de temps : Principes, réalisations, applications », Nuit Sciences et Lettres, ENS, Paris, France, 7 juin 2019.

COTXET J., TRICOT F., GUTTY F., BAILI G., PHUNG D.-H., HOLLEVILLE D., LOURS M., GUÉRANDEL S., NOUCHI P. et DOLFI D., « Vers une horloge atomique césium CPT compacte avec un VECSEL bi-fréquence », Journée du Club Optique Micro-ondes de la SFO (JCOM 2019), Brest, France, 7 juin 2019.

LANDRAGIN A., BIZE S., DELVA P. and LAMBERT S., « Les horloges atomiques et leur impact en géodésie », Journée scientifique 2019 du Bureau des Longitudes, Paris, France, 7 juin 2019.

PEREIRA DOS SANTOS F., « Développements et usages des gravimètres à atomes froids », Journée scientifique 2019 du Bureau des Longitudes, Paris, France, 7 juin 2019.

GUO C., CAMBIER V., CALVERT J., FAVIER M., ANDIA M., DE SARLO L. and BIZE S., “A mercury optical lattice clock at LNE-SYRTE: Highly accurate optical frequency ratio measurements for exploring fundamental physics”, Quantum Metrology and Physics beyond the Standard Model, Hannover, Germany, 11-14 June 2019.

KARCHER R., IMANALIEV A., MERLET S. and PEREIRA DOS SANTOS F., “Improving the accuracy of cold atom gravimeters with ultracold sources”, CLEO, Munich, Germany, 23-27 June 2019.

KARCHER R., IMANALIEV A., MERLET S. and PEREIRA DOS SANTOS F., “LNE-SYRTE ultracold atom gravimeter”, CLEO/Europe-EQEC 2019, Munich, Germany, 23-27 June 2019.

FRIEDT J.-M., FENG W., CHRÉTIEN S., GOAVEC-MEROU G. and SATO M., “Passive radar for measuring passive sensors: direct signal interference suppression on FPGA using orthogonal matching pursuit and stochastic gradient descent”, 2019 SPIE Optical Metrology, Munich, Germany, 24-27 June 2019.

LANDRAGIN A., “Pieces of history of Observatoire de Paris and SYRTE”, Workshop on matter-wave interferometry: from pioneering experiments to modern applications, SIRTEQ, Paris, France, 27-28 juin 2019.

ALVAREZ MARTINEZ H., BAERENTSEN C., LE COQ Y., LE TARGAT R. , FOUCAULT Y., ALVES BRUNO X.R., LODEWYCK J., CAMBIER V., GUO C;, BIZE S., CANTIN E., POTTIE P.-E., LOPEZ O. and AMY-KLEIN A., “International clock comparisons: What’s hiding behind 18 significant digits?”, 25^e Congrès Général de la Société Française de Physique, Nantes, France, 8-12 July 2019.

GAUTIER R., ALTORIO M., SIDORENKOV L., GEIGER R. and LANDRAGIN A., “Test of the Sagnac effect for matter-waves with a cold atom gyroscope”, Young Atom Opticians (YAO), Hamburg, Germany. 28 July 2019.

HANSEN A., CHEN Y.-J., SHUKER M., BOUDOT R., KITCHING J. and DONLEY E.A., “Point source atom interferometer gyroscope for navigation and precision measurements”, 2019 Conference on Coherence and Quantum Optics (CQO 2019), Rochester, NY, USA, 4-8 August 2019.

HUGEAT A., BERNARD J., FRIEDT J.-M., BOURGEOIS P.-Y. and GOAVEC-MEROU G., “Optimization of signal processing chains: application to cascaded filters”, 27th European Signal Processing Conference (EUSIPCO 2019), Coruna, Spain, 2-6 Sept. 2019.

ACHKAR J., HUANG Y.-J., PIESTER D., STALIUNIENNE E. and ARIAS E.F., “First Calibration of the UTC TWSTFT Link between LNE-SYRTE and PTB Using a Travelling SDR Receiver”, 7^th International Colloquium on Scientific and Fundamental Aspects of GNSS, Zurich, Switzerland, 4-6 September 2019.

LORINI L., PAVLENKO K.Y., BIZE S., BLINOV I., DESRUELLES B., PAVLENKO Y. and STERN G., “High stability Rb fountains for time scale generation”, 7^th International Colloquium on Scientific and Fundamental Aspects of GNSS, Zurich, Switzerland, 4-6 September 2019.

UHRICH P., ABGRALL M., RIEDEL F., CHUPIN B., ACHKAR J. and ROVERA D., “A pirate signal nearby L1-Band jamming GNSS stations in Observatoire de Paris”, 7th international colloquium on scientific and fundamental aspects of GNSS, Zurich, Switzerland, 4-6 September 2019.

PEREIRA DOS SANTOS F., CALDANI R., KARCHER R., IMANALIEV A., WENG K. and MERLET S., “Improving the accuracy of atom gravity sensors”, 2019 Frontiers in Optics + Laser Science Conference, Washington, USA, 15-19 September 2019.

ACHKAR J. and HUANG Y.-J., “Use of a Standard Microwave Satellite Simulator for TWSTFT Earth Station Characterization”, 19^e Congrès International de Métrologie, Paris, France, 24-26 septembre 2019.

JANVIER C., VERMEULEN P., DESRUELLE B., MÉNORET V., PEREIRA DOS SANTOS F. and LANDRAGIN A., “New developments for commercial quantum gravimeters”, 5th IAG Symposium on Terrestrial Gravimetry: Static and Mobile Measurements (TG-SMM 2019), Saint Petersburg, Russia, 1-4 October 2019.

BIZE S., “Toward a redefinition of the SI second with optical clocks: an overview of recent progress”, Consultative Committee on Units, BIPM, Sèvres, France, 9 octobre 2019.

CALDANI R., « Interférométrie atomique pour la mesure de g et son gradient vertical », Assemblée générale FIRST-TF, Marseille, France, 10 octobre 2019.

LANDRAGIN A., « Capteurs Quantiques », Huitième conférence plénière du GDR ONDES, Gif-sur-Yvette, France, 28-29 octobre 2019.

UHRICH P., ABGRALL M., RIEDEL F., CHUPIN B., ACHKAR J. and ROVERA D., “A powerful signal nearby L1-Band jamming GNSS stations in Observatoire de Paris”, ACES Workshop, Paris, France, 28-29 octobre 2019.

BOY J.-P., BERNARD J.-D., HINDERER J., ROGISTER Y., ROSAT S., CHAMPOLLION C., LE MOIGNE N., MAZZOTTI S., LEQENTREC-LALANCETTE M.-F., LUCAS S., MEMIN A. and MERLET S., « Mesures combinées gravimétrie - GNSS - marégraphie », 4^es Rencontres Scientifiques et Techniques RESIF, Biarritz, France, 12-14 novembre 2019.

BIZE S., “Time, frequency and inertial sensing activities at SYRTE”, Journée Photonique France, Observatoire de Paris, France. 13 novembre 2019.

PEREIRA DOS SANTOS F., “Trapped Atom Interferometers in Optical Lattices (TAIOL)”, QuantERA Mid-Term Strategic Conference, Granada, Spain, 13-14 November 2019.

GEIGER R., ALTORIO M., GAUTIER R., SIDORENKOV L. and LANDRAGIN A., “Accurate inertial measurements by cold-atom interferometry”, 10^th Colloquium GDR IQFA (IQFA’X), Paris, France. Paris, France, 13-15 novembre 2019.

BIZE S., « Peut-on accéder à une représentation objective du temps ? », Time World: Congrès international sur le temps, Cité des sciences et de l'industrie, Paris, France, 22 novembre 2019.

GEIGER R., ALTORIO M., GAUTIER R., SIDORENKOV L.A. and LANDRAGIN A., “Cold-atom gravito-inertial sensors: Future technology for exploration and production?”, TOTAL research center for exploration and production, Pau, France, 29 novembre 2019.

JANVIER C., VERMEULEN P., MÉNORET V., ANTONI-MICOLLIER L., DESRUELLE B., PEREIRA DOS SANTOS F., MERLET S. and LANDRAGIN A., “Development of a quantum gravity gradiometer for observatory measurements”, AGU Fall meeting, San-Francisco, USA, 9-13 December 2019.

ANDIA M., GUO C., CAMBIER V., CALVERT J., DE SARLO L., BIZE S., CANTIN E., XU D., TONNES M., POTTIE P.-E., MARTÍNEZ HÉCTOR Á., BÆRENTSEN C.ØRTOFT, LE TARGAT R. , FOUCAULT Y., ALVES B.X.R., MORENO W., LODEWYCK J., LOPEZ O., AMY-KLEIN A., QUINTIN N., ABDEL H.M., KUHL A., KOKE S., WATERHOLTER T., GROSCHE G., HUNTEMANN N., LANGE R., LIPPHARDT B. and PEIK E., “Mercury optical lattice clock with a 2D magneto-optical trap”, International conference on Quantum Metrology and Sensing (IQuMS), SIRTEQ, Paris, France, 9-13 décembre 2019.

BEAUFILS Q., “MIGA: a large scale atom interferometer for gravitational measurements”, International conference on Quantum Metrology and Sensing (IQuMS), SIRTEQ, Paris, France, 9-13 décembre 2019.

LANDRAGIN A., SAVOIE D., ALTORIO M., GAUTIER R., FANG B., SIDORENKOV L.A. and GEIGER R., “Achieving quantum projection noise limit in inertial sensor based on atom interferometry”, International conference on Quantum Metrology and Sensing (IQuMS), SIRTEQ, Paris, France, 9-13 décembre 2019.

MERLET S., PICCON R., SAKAR S., CALDANI R., KARCHER R. and PEREIRA DOS SANTOS F., “Quantum absolute sensors for gravity measurements”, International conference on Quantum Metrology and Sensing (IQuMS), SIRTEQ, Paris, France, 9-13 décembre 2019.

ABDEL HAZ M., VICARINI R., PASSILLY N., CALOSSO C.E., MAURICE V., POLLOCK J.W., TAICHENACHEV A.V., YUDIN V.I., KITCHING J.and BOUDOT R., “Protocol for light-shift compensation in a continuous-wave microcell atomic clock”, Physical Review Applied, 2020, 14, 034015, DOI: 10.1103/PhysRevApplied.14.034015.

ALTORIO M., SIDORENKOV L.A., GAUTIER R., SAVOIE D., LANDRAGIN A. and GEIGER R., “Accurate trajectory alignment in cold-atom interferometers with separated laser beams”, Phys. Rev. A., 2020, 101, 033606, DOI: 10.1103/PhysRevA.101.033606.

BARAUSSE E. et al., “Prospects for fundamental physics with LISA”, General Relativity and Gravitation, 2020, 52, 81, DOI: 10.1007/s10714-020-02691-1.

BAUDIQUEZ A., LANTZ E., RUBIOLA E. and VERNOTTE F., “Cross-spectrum measurement statistics: Uncertainties and detection limit”, IEEE Transact. Ultrason., Ferroelec. Freq. Control, 2020, 67, 11, 2461-2470, DOI: 10.1109/TUFFC.2020.3005785.

BOUDOT R., MCGILLIGAN J.P., MOORE K.R., MAURICE V., MARTINEZ G.D., HANSEN A., DE CLERCQ E. and KITCHING J., “Enhanced observation time of magneto-optical traps using micro-machined non-evaporable getter pumps”, Scientic Reports, 2020, 10, 16590, DOI: 10.1038/s41598-020-73605-z.

BOURHILL J., CARVALHO N.C., GORYACHEV M., GALLIOU S. and TOBAR M., “Generation of coherent phonons via a cavity enhanced photonic lambdascheme”, Appl. Phys. Lett., 2020, 117, 164001, DOI: 10.1063/5.0023624.

BRAZHNIKOV D.V., IGNATOVICH S.M., MESENZOVA I.S., MIKHAILOV A.M., BOUDOT R. and SKVORTSOV M.N., “Two-frequency sub-Doppler spectroscopy of the caesium D1 line in various configurations of counterpropagating laser beams”, Quantum Electronics, 2020, 50, 11, 1015-1022, DOI: 10.1070/QEL17433.

CACCIAPUOTI L., ARMANO M., MUCH R., SY O., HELM A., HESS MARC P., KEHRER J., KOLLER S., NIEDERMAIER T., ESNAULT F.-X., MASSONNET D., GOUJON D., PITTET J., ROCHAT P., LIU SHUO, SCHAEFER W., SCHWALL T., PROCHÁZKA I., SCHLICHT A., SCHREIBER ULRICH, DELVA P., GUERLIN Ch., LAURENT Ph., LE PONCIN-LAFFITE Ch., LILLEY M., SAVALLE E., WOLF P., MEYNADIER F. and SALOMON Ch., “Testing gravity with cold-atom clocks in space, The ACES mission”, European Physical Journal D, 2020, 74, 164, DOI: 10.1140/epjd/e2020-10167-7.

CALOSSO C.E., CÁRDENAS OLAYA A.C. and RUBIOLA E., “Phase-noise and amplitude-noise measurement of DACs and DDSs”, IEEE Transact. Ultrason., Ferroelec. Freq. Control, 2020, 67, 2, 431-439, DOI: 10.1109/TUFFC.2019.2943390.

CANUEL B. et al., “ELGAR - a European Laboratory for Gravitation and Atom-interferometric Research”, Classical and Quantum Gravity, 2020, 37, 225017, DOI: 10.1088/1361-6382/aba80e.

CHEN Y.-J., HANSEN A., SHUKER M., BOUDOT R., KITCHING J. and DONLEY E.A., “Robust inertial sensing with point-source atom interferometry for interferograms spanning a partial period”, Optics Express, 2020, 28, 23, 34516, DOI: 10.1364/OE.399988.

DURDAUT P., RUBIOLA E., FRIEDT J.-M., MÜLLER C., SPETZLER B., KIRCHHOF C., MEYNERS D., QUANDT E., FAUPEL F., MCCORD J., KNÖCHEL R. and HÖFT M, “Fundamental noise limits and sensitivity of piezoelectrically driven magnetoelastic cantilevers”, IEEE J. Microelectromechanical Systems, 2020, 29, 5, 1347-1361, DOI: 10.1109/JMEMS.2020.3014402.

GALLAND N., LUČIĆ N., FANG B., ZHANG S., LE TARGAT R., FERRIER A., GOLDNER P., SEIDELIN S. and LE COQ Y., “Mechanical Tunability of an Ultranarrow Spectral Feature of a Rare-Earth-Doped Crystal via Uniaxial Stress”, Phys. Rev. Applied, 2020, 13, 044022, 10.1103/PhysRevApplied.13.044022.

GALLAND N., LUČIĆ N., ZHANG S., ALVAREZ-MARTINEZ H., LE TARGAT R., FERRIER A., GOLDNER P., FANG B., SEIDELIN S. and Le Coq Y., “Double-heterodyne probing for an ultra-stable laser based on spectral hole burning in a rare-earth-doped crystal”, Optics Letters, 2020, 45, 1930, DOI: 10.1364/OL.389833.

GEIGER R., LANDRAGIN A., MERLET S. and PEREIRA DOS SANTOS F., “High-accuracy inertial measurements with cold-atom sensors”, AVS Quantum Science, 2020, 2, 024702, DOI: 10.1116/5.0009093.

GIORDANO V., FLUHR C. and DUBOIS B., “Magnetic sensitivity of the microwave sapphire oscillator”, J. Appl. Phys., 2020, 127, 184101, DOI: 10.1063/5.0007131.

GORYACHEV M., GALLIOU S. and TOBAR M.E., “Generation of ultra-low power phononic combs”, Phys. Rev. Research, 2020, 2, 023035, DOI: 10.1103/PhysRevResearch.2.023035.

GRUSON Y., RUS A., ROHDE U.L., ROTH A. and RUBIOLA E., “Artifacts and errors in cross-spectrum phase noise measurements”, Metrologia, 2020, 57, 5, 055010, 1-12, DOI: 10.1088/1681-7575/ab8d7b.

GUO C., FAVIER M., GALLAND N., CAMBIER V., ALVAREZ MARTINEZ H., LOURS M., DE SARLO L., ANDIA M., LE TARGAT R. and BIZE S., “Accurate laser frequency locking to optical frequency combs under low-signal-to-noise-ratio conditions”, Review of Scientific Instruments, 2020, 91, 033202, DOI: 10.1063/1.5140793.

HUGEAT A., BERNARD J., GOAVEC-MEROI G., BOURGEOIS P.Y. and FRIEDT J.-M., “Filter optimization for real-time digital processing of radio-frequency signals: Application to oscillator metrology”, IEEE Trans. Ultrason. Ferroelec. Freq. Contr., 2020, 67, 2, 440-449, on line 1 Oct. 2019, DOI: 10.1109/TUFFC.2019.2945013.

KARCHER R., PEREIRA DOS SANTOS F. and MERLET S., “Impact of direct-digital-synthetizer finite resolution on atom gravimeters”, Phys. Rev. A., 2020, 101, DOI: 10.1103/PhysRevA.101.043622.

LAUPRÊTRE T., GROULT L., ACHI B., PETERSEN M., KERSALÉ Y., DELEHAYE M. and LACROÛTE C., “Absolute frequency measurements of the ¹S₀→¹P₁ transition in ytterbium”, OSA Continuum, 2020, 3, 1, 50-57, DOI: 10.1364/OSAC.3.000050.

LAURENT Ph., ESNAUT F.X., GIBBLE K., PETERMAN Ph., LÉVÈQUE T., DELAROCHE Ch., GROSJEAN O., MORIC I., ABGRALL M., MASSONNET D. and SALOMON Ch., “Qualification and frequency accuracy of the space-based primary frequency standard PHARAO”, Metrologia, 2020, 57, 055005, DOI: 10.1088/1681-7575/ab948b.

LE COQ Y., MØLMER K. and SEIDELIN S., « Position- and momentum-squeezed quantum states in micro-scale mechanical resonators”, Modern Physics Letters B, 2020, 34, 2050193, DOI: 10.1142/S0217984920501936.

LODEWYCK J. and PEREIRA DOS SANTOS F. « Atomes, ions, molécules ultrafroids et technologies quantiques / Chapitre 2 : Instruments à atomes froids et métrologie », EDP Sciences, 2020.

LODEWYCK J., LE TARGAT R. , POTTIE P.-E., BENKLER E., KOKE S.and KRONJÄGER J., “Universal formalism for data sharing and processing in clock comparison networks”, Physical Review Research, 2020, 2, 043269, DOI: 10.1103/PhysRevResearch.2.043269.

LORIANI S., SCHUBERT CH., SCHLIPPERT D., ERTMER W., PEREIRA DOS SANTOS F., RASEL ERNST M., GAALOUL N. and WOLF P., “Resolution of the colocation problem in satellite quantum tests of the universality of free fall”, Physical Review. D, 2020, 102, 124043, DOI: 10.1103/PhysRevD.102.124043.

MCGILLIGAN J.P., MOORE K.R., DELLIS A., MARTINEZ G.D., DE CLERCQ E., GRIFFIN P.F., ARNOLD A.S., RIIS E., BOUDOT R.and KITCHING J., “Laser cooling in a chip-scale platform”, Applied Physics Letters, 2020, 117, 054001, DOI: 10.1063/5.0014658.

MICHELE G., YU J., LESSING M., FISCHER M., LEZIUS M., XIE X., SANTARELLI G., LE COQ Y. and HOLZWARTH R., “Compact and ultrastable photonic microwave oscillator”, Optics Letters, 2020, 45, 1140, https://doi.org/10.1364/OL.385503.

MIELEC N., SAPAM R., POULAIN C., LANDRAGIN A., BERTOLDI A., BOUYER PH., CANUEL B. and GEIGER R., “Degenerate optical resonator for the enhancement of large laser beams”, Optics Express, 2020, 28, 39112, DOI: 10.1364/OE.409293.

MRAD M., TARHINI A. and GIORDANO V., “Absorbance and energy levels for a Fe³⁺ ion in α-Al₂O₃. Optical pumping applied to a 31GHz maser”, Current Applied Physics, 2020, 20, 1366-1372, DOI: 10.1016/j.cap.2020.08.014.

RIEDEL F. et al., “Direct comparisons of European primary and secondary frequency standards via satellite techniques”, Metrologia, 2020, 57, 045005, DOI: 10.1088/1681-7575/ab6745.

ROBERTS B.M. et al., “Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks”, New Journal of Physics, 2020, 22, 093010, Featured article, DOI: 10.1088/1367-2630/abaace.

SABULSKY D.O., JUNCA J., LEFÈVRE G., ZOU X., BERTOLDI A., BATTELIER B., PREVEDELLI M., STERN G., SANTOIRE J., BEAUFILS Q., GEIGER R., LANDRAGIN A., DESRUELLE B., BOUYER Ph. and CANUEL B., “A fibered laser system for the MIGA large scale atom interferometer”, Scientific Reports, 2020, 10, 3268, DOI: 10.1038/s41598-020-59971-8.

SIDORENKOV L.A., GAUTIER R., ALTORIO M., GEIGER R. and LANDRAGIN A., “Tailoring multi-loop atom interferometers with adjustable momentum transfer”, Physical Review Letters, 2020, 125, 213201, DOI: 10.1103/PhysRevLett.125.213201.

WITTROCK S., TALATCHIAN P., TSUNEGI S., CRÉTÉ D., YAKUSHIJI K., BORTOLOTTI P., EBELS U., FUKUSHIMA A., KUBOTA H., YUASA S., GROLLIER J., CIBIEL G., GALLIOU S., RUBIOLA E. and CROS V., “Influence of flicker noise and nonlinearity on the frequency spectrum of spin torque nano-oscillators”, Nature Scientic Reports, 2020, 10, 13116, DOI: 10.1038/s41598-020-70076-0.

WU S., FENG J., LI C., SU D., WANG Q., HU R., HU L., XU L., JI WANGXI, ULLRICH CH., PÁLINKÁS PECNÝ V., KOSTELECKÝ J., BILKER-KOIVULA M., NÄRÄNEN J., MERLET S., LE MOIGNE N., MIZUSHIMA S., FRANCIS O., CHOI IN-MOOK, KIM MIN-SEOK, ALOTAIBI H.M., ALJUWAYR A., BAUMANN H., PRIRUENROM T., WORADET N., KIRBAS C., COSKUN I. and NEWEL S., “The result of CCM.G-K2.2017 key comparison”, Metrologia, 2020, 57, 1A, DOI: 10.1088/0026-1394/57/1A/07002.

XU D., LOPEZ O., AMY-KLEIN A. and POTTIE P.-E., “Unidirectional two-way optical frequency comparison and its fundamental limitations, Optics Letters, 2020, 45, 6074, DOI: 10.1364/OL.404866.

YUDIN V.I., YU BASALAEV M., TAICHENACHEV A.V., POLLOCK J.W., NEWMAN Z.L., SHUKER M., HANSEN A., HUMMON M.T., BOUDOT R., DONLEY E.A. and KITCHING J., “General methods for suppressing the light shift in atomic clocks using power modulation”, Physical Review Applied, 2020, 14, 024001, DOI: 10.1103/PhysRevApplied.14.024001.

ZHANG S., LUČIĆ N., GALLAND N., LE TARGAT R., GOLDNER P., FANG B., SEIDELIN S. and LE COQ Y., “Precision measurements of electric-field-induced frequency displacements of an ultranarrow optical transition in ions in a solid”, Appl. Phys. Lett., 2020, 117, 221102, DOI: 10.1063/5.0025356.

LANDRAGIN A., ALTORIO M., GAUTIER R., SIDORENKOV L.A. and GEIGER R., “Accurate rotation rate measurements with a cold atom interferometer”, The 50th Winter Colloquium on the Physics of Quantum Electronics, Snowbird, USA, 5-10 January 2020.

ALVES B., XIMENEZ R., MORENO W., FOUCAULT Y., LE TARGAT R. and LODEWYCK J., “Non-destructive detection in ⁸⁷Sr optical lattice clocks”, Early career in trapped ions, CERN, Genève, Suisse, 13-17 janv.2020.

COTXET J., GREDAT G., GUTTY F., TRICOT F., BAILI G., NOUCHI P., DOLFI D., SCHMEISSNER R., GUÉRANDEL S., HOLLEVILLE D., BRETENAKER F., GOLDFARB F., LIU H., LUCAS-LECLIN G., JANICOT S., GEORGES P., SAGNES I. and BEAUDOIN G., “Development of a Dual-Frequency VECSEL for a compact CPT clock”, 9th International Symposium on Optronics in Defence and Security (OPTRO 2020), Paris, France, 28-30 janvier 2020.

COTXET J., GUTTY F., TRICOT F., PHUNG D.-H., BAILI G., SCHMEISSNER R;, NOUCHI P., DOLFI D., HOLLEVILLE D. and GUÉRANDEl S., “Laser power stabilisation investigations for a cesium clock optical bench compatible with a dual-frequency VECSEL”, 9th International Symposium on Optronics in Defence and Security (OPTRO 2020), Paris, France, 28-30 janvier 2020 (online).

BOUDOT R., ABDEL HAFIZ M., COGET G., and PETERSEN M., “An Autobalanced Ramsey-CPT-based Cs cell atomic clock”, Basel Quantum Metrology and Sensing Conference, Basel, Switzerland, 12-14 February 2020.

GEIGER R., GAUTIER R., SIDORENKOV L.A. and LANDRAGIN A., “Precision Inertial Measurements with Cold-Atom Interferometers”, Basel Quantum Metrology and Sensing Conference, Basel, Switzerland, DOI: https://bqms.unibas.ch/en/home/, 12-14 Febr. 2020.

VICARINI R., GUSCHING A., PETERSEN M., MAURICE V., ABDEL HAFIZ M., PASSILLY N., GALLIOU S. and BOUDOT R., “Microcell-based frequency references at FEMTO-ST”, Basel Quantum Metrology and Sensing Conference, Basel, Switzerland, 12-14 February 2020.

GAUTIER R., ALTORIO M., SIDORENKOV L.A., GEIGER R. and LANDRAGIN A., “Precision inertial measurements with a cold-atom interferometer”, SPIE Photonics Europe Digital Forum 2020, Strasbourg, France, 4-6 avril 2020 (visio conf.).

BRAZHNIKOV D.V., IGNATOVICH S.M., VISNYAKOV V.I., BOUDOT R. and SKVORTSOV M.N., “Electromagnetically induced absorption for a Cs vapor cell microwave frequency reference”, 34^th EFTF, Noordwiijk, Pays-Bas, 21-23 April 2020 (Conf. annulée : Covid-19).

GUO C., CAMBIER V., ANDIA M., XIMENEZ RODRIGUES ALVES B., FOUCAULT Y., ALVAREZ-MARTINEZ H., MORENO W., CALVERT J., DE SARLO L., LE TARGAT R., LODEWYCK J. and BIZE S., “A mercury optical lattice clock with improved stability and accuracy”, 34^th EFTF, Noordwiijk, Pays-Bas, 21-23 April 2020 (Conf. annulée : Covid-19).

VICARINI R., PASSILLY N., MAURICE V., ABDEL HAFIZ M., GALLIOU S. and BOUDOT R., “Pushing down the mid-long term stability of CPT-based microcell atomic clocks”, 34^th EFTF, Noordwijk, Pays-Bas, 21-23 April 2020 (Conf. annulée : Covid-19).

JANVIER C., MÉNORET V., LAUTIER J., DESRUELLE B., MERLET S., PEREIRA DOS SANTOS F. and LANDRAGIN A., “Operating an industry-grade quantum differential gravimeter”, EGU General Assembly 2020, Abstract p.9185, 4-8 May 2020 (online).

COOKE A.-K., CHAMPOLLION C., VERMEULEN P., LE MOIGNE N. and MERLET S., “Can vertical gravity gradients monitor seasonal soil moisture dynamics?”, EGU General Assembly 2020, Abstract p.8969, 4-8 May 2020 (online).

GEIGER R., GAUTIER R., SIDORENKOV L.A. and LANDRAGIN A., “Towards a two-axis cold-atom gyroscope for rotational seismology”, EGU General Assembly 2020, Abstract p.8434, 4-8 May 2020 (online).

MERLET S., PICCON R., SARKAR S. and PEREIRA DOS SANTOS F., “Quantum Absolute Sensors for Gravity Measurements”, EGU General Assembly 2020, Abstract p.8392, 4-8 May 2020 (online).

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Use of cold-atom interferometry to measure gravitational and inertial effects.

inertial sensors, atom interferometry, gravitational waves, cold atoms, equivalence principle

Full document: https://tel.archives-ouvertes.fr/tel-02267800.

This thesis aims to improve the accuracy of the Cold Atom Gravimeter from LNESYRTE. This gravimeter employs atom interferometry techniques to measure the local gravity acceleration g of free falling Rubidium 87 cold atoms. This gravimeter is the national metrological reference meaning that all its biases must be evaluated with the best accuracies. At the beginning of this thesis, the total accuracy budget of 4.3 µGal, was dominated by the uncertainty on the wavefront aberration bias which accounted for 4.0 µGal. In order to improve the evaluation of this effect, we implemented an ultra-cold atom source. With this source, we performed g measurements over a wide range of temperatures. The developpment of a complete model of the experiment and a siimulation of the impact of the wavefronts on the g measurements allowed us to gain insights on the evaluation of this bias which uncertainty was thus improved by a factor three and is now 1.3 µGal. Finally, the gravimeter participated in the Kibble balance project which goal was to link the Planck constant to the kg unit. This project needed the determination and transfer of the absolute g value. We contributed to the revolution of the International System of Units: the Planck constant is now fixed and the definition of the kg is modified. This new definition is now effective since the 20 May 2019.

gravimetry, fundamental metrology, inertial sensor, atom interferometry, Raman transitions, ultra-cold atoms, dipole trap, Kibble balance, kilogramme redefinition

Full document: https://tel.archives-ouvertes.fr/tel-02950853

Atomic sensors are among the best devices for precision measurements of time, electric and magnetic fields, and inertial forces. However, all atomic sensors that utilise uncorrelated particles are ultimately limited by quantum projection noise, as is already the case for state-of-the-art atomic clocks. This so-called standard quantum limit (SQL) can be overcome by employing entanglement, a prime example being the spin-squeezed states. Spin squeezing can be produced in a quantum non-demolition (QND) measurement of the collective spin, particularly with cavity quantum electrodynamical (cQED) interactions. In this thesis, I present the second-generation trapped-atom clock on a chip (TACC) experiment, where we combine a metrology-grade compact clock with a miniature cQED platform to test quantum metrology protocols at a metrologically-relevant precision level. In a standard Ramsey spectroscopy, the stability of the apparatus is confirmed by a fractional frequency Allan deviation of 6×10^-13 at 1 s. We demonstrate spin squeezing by QND measurement, reaching 8(1) dB for 1.7×10⁴ atoms, currently limited by decoherence due to technical noise. Cold collisions between atoms play an important role at this level of precision, leading to rich spin dynamics. Here we find that the interplay between cavity measurements and collisional spin dynamics manifests itself in a quantum amplification effect of the cavity measurement. A simple model is proposed, and is confirmed by initial measurements. New experiments in this direction may shed light on the surprising many-body physics in this sytem of interacting cold atoms.

atom chip, Atomic clock, spin-squeezed states, cavity quantum electrodynamics, spin dynamics, quantum metrology

Full document : https://tel.archives-ouvertes.fr/tel-02356949

Optical clocks have changed time and frequency metrology since the beginning of the 2000’s. The work was based on a mercury optical lattice clock. Mercury is a promising candidate for optical clocks thanks to its weak sensitivity to blackbody radiation shift. We took benefit of a magneto optical trap in two dimensions (2D-MOT) to pre-cool the mercury atoms before the interrogation phase. It allows us not only to trap much more atoms but also to improve the clock cycle by decreasing the total cycle time. These improvements made possible the lifetime measurement of the ³P₀ state and to participate to measurement campaigns at the European scale between different clocks located a few hundreds of kilometres apart. As a consequence, it was possible to measure for the first time the frequency ratio between mercury and Yb+ ion.

Clock, metrology, spectroscopy, optics, laser cooling, atomic physics

Full document: https://hal.archives-ouvertes.fr/tel-02501535

This work focuses on the development of a new generation of cold-atom inertial sensor. Its architecture is based on two independent atomic sources simultaneously interrogated by an interferometric sequence common to both sources. In addition, in order to achieve ultimate measurement performance, our instrument is based on the latest optical methods for atomic manipulation: Bloch oscillations and multi-photon transitions. During my thesis, the instrument has reached a level of development to perform a proof-of-principle operation, allowing to simultaneously measure the gravity acceleration g and its vertical gradient. In particular, we demonstrated a new measurement method that allows to overcome not only common mode noise, but also the baseline fluctuations of the instrument, for the determination of the gravity gradient. To carry out this work, I also used a prototype of industrial optical bench for space application, developed as part of a project funded by the European Space Agency (ESA) and coordinated by the Muquans company. In parallel with the developments of our instrument, we tested and characterized this fiber bench which fulfills all the optical functionalities necessary for the operation of an atom interferometer in space.

atom interferometry, inertial sensor, gravimetry, metrology, space application

Full document : https://tel.archives-ouvertes.fr/tel-03020176.

With the development of electronic industry, a growing number of projects require real-time streaming applications on embedded platforms. These comprise increasingly high hardware and timing constraints, which leads to the use of FPGAs (Field Programmable Gate Arrays). Usually, the designer should have a good knowledge of programming with VHDL or Verilog HDL. Unfortunately, only specialists can do it, because this needs a lot of training and practices to master these architectures. Furthermore, even for specialists, the process of development is quite time consuming. Therefore, how to develop a tool to help non-expert users working on FPGA is a promising but challenging work.

Tools like Simulink+HDL coder provide a graphical interface to create a design, by putting functional blocks on a layer and to connect them. Nevertheless, such tools are generally suffering from two flaws. One is that they do not take the physical characteristics of the target architecture of the application into account, including that of the selected FPGA. The other one is that they do not check whether a data stream is processed correctly by the design, besides creating many test-benches, which is tedious and time consuming for the developer. Therefore, they are not suitable to produce applications in real-time environment and high hardware constraints.

In order to manage the ever-increasing size and complexity of designs, the abstraction is gradually more and more essential. Some models have emerged to represent a design as a graph of actors (i.e. blocks), with a static analysis of the graph execution. Nevertheless, they have an unfaithful description of the behavior real architectures like an FPGA.

In this dissertation, we concentrate on the study of a novel model and software tool that can help non-expert users for automatic design of FPGA implementations correctly. The main contributions are summarized as follows:

1. The limits of existing SDF models, in particular those of the SDF-AP model, are described and illustrated by the analysis of characteristic examples. The two most common problems encountered in block assembly implementations are the production of incorrect results and the infinite growth of buffer size.

2. We propose a new model called Actors Stretchable Access Patterns (ASAP) that describes the hardware behaviors as efficiently and precisely as possible. This is a novel way to address the scheduling problem of actors, adapted to FPGA architectures. It opens the possibility to determine the execution correctness mathematically without launching complex simulations. It can not only model actors' behaviors properly, but also avoid the above mentioned drawbacks. Algorithms that implement these principles also provided.

3. We investigate strategies and related algorithms to analyze a graph representing a designed system. Its correctness can be analyzed by a series of algorithms, such as sample rate checking and pattern compatibility checking. The decimation rate or the delay length to be applied on actor's input can be computed when a correctness failure is detected. This increases the number of possible real FPGA implementations covered by the block assembly method.

4. A software tool based on the concept of functional block graph is also developed. It is called BlAsT (Block Assembly Tool) and aims to compensate the drawbacks of other tools based on the same concepts, as for example Simulink + HDL coder. In BlAsT, the proposed ASAP model and related algorithms are used to check that for a given input stream, whether the system can produce a correct result and finally generate VHDL code directly usable on a real FPGA-based board. Otherwise, the tool determines the required decimations and modifications on the graph automatically. It makes a user without any programming skills to make designs on FPGAs thanks to the friendly graphic interface.

https://tel.archives-ouvertes.fr/tel-01865542

FPGA, model based design

This work has been done in order to use spectral holes burnt in the absorption spectrum or rare-earth doped crystals to create an optomechanical coupling with a micro-resonator. By doing so, the objective is to study quantum properties of a macroscopic mechanical object. Such a study could be of great interest in the field of quantum information, fundamental physics or high sensitivity sensing. The ⁷F₀-⁵D₀ transition of europium ions used as a dopant in an yttrium orthosilicate crystal show an inhomogeneous broadening of the resonance that can reach 2 GHz for 0.1 % doping due to imperfection of the crystalline matrix. By maintaining the crystal below 5 K, one can use a narrow linewidth laser to create a persistent narrow transmission window, dependent on the homogeneous linewidth of the transmission, at any chosen frequency within the absorption spectrum. Such structures, called spectral holes, are made possible by optically pumping a given class of ions into dark states whose lifetime at 4 K can reach tens of hours. The development of a new method to follow the frequency of spectral holes, based on double heterodyne detection of a dispersive signal is presented, as well as a measurement of the spectral hole frequency sensitivity to uniaxial constraints applied to the crystal. This measurement is useful to properly design the resonator and can provide an upper limit to the detection noise in order to see an effect of the coupling with this resonator. A first study of the optical setup necessary to burn spectral holes at the base of a 10×10×100 µm cantilever resonator is given. Finally, the influence of the new detection scheme on the frequency stability measurement of spectral holes is discussed.

rare-earth doped crystals, nanotechnologie, optomechanics, light-matter interaction

This thesis describes the implementation of new atom interferometry techniques to improve the stability and accuracy of a cold-atom gyroscope located at the SYRTE laboratory. Stimulated Raman transitions are used to split and recombine the atomic waves. A sequence of four light pulses generates an interferometer with a Sagnac area of 11 cm². The implementation of an interleaved interrogation scheme is presented, where three atomic clouds are interrogated simultaneously in an atom interferometer featuring a sampling rate of 3.75 Hz and an interrogation time of 801 ms. With this scheme a short-term sensitivity of 30 nrad·s^–1/Hz^½ has been demonstrated. We then present measurements of dynamic rotation rates in a so far unexplored range for a cold atom sensor. An important bias of the sensor originates from a coupling between a relative misalignment of the mirrors which retro-reflect the Raman beams and the trajectory of the atom. A technique is introduced to reduce this bias at the level of 1 nrad·s^-1 and to achieve a long-term stability of 0.3 nrad·s^-1 which represents the state of the art for atomic gyroscopes. The manuscript then describes the first characterization of the scale factor of the gyroscope using different techniques. In particular, the implementation of a rotation stage below the sensor enables us to vary the projection of the Erath rotation rate vector onto the interferometer area and therefore to modulate the rotation phase shift. The implementation of the techniques presented in this thesis pave paving the way to a test of the Sagnac effect for matter waves with a relative accuracy level below 100 parts per million.

atom interferometry, inertial sensor, cold atom, gyroscope, Sagnac effect, stimulated Raman transitions

Full document : https://tel.archives-ouvertes.fr/tel-02931881