Doctor in atomic physics
age : 30 , french
Since september 2013: “Atom interferometry gradiometer for the determination of the Newtonian gravitational constant G” at INFN and LENS, Florence, Italy.
I presently work on the metrological experiment MAGIA, which has recently measured the Newtonian constant with a relative uncertainty of 10-4. I am developing a new large area gravity gradiometer in order to increase again the sensitivity of the experiment toward the gravitational waves detection limit.
2011 - 2013 (2 years): European Space Agency (ESA) Post-Doc: “SAI, Space Atom Interferometer”: Florence, Italy.
I was responsible of the experimental development of the SAI project, led the European Space Agency which coordinates 9 laboratories of excellence in Italy, France and Germany. The SAI project investigates both experimentally and theoretically the various aspects of placing atom interferometers in space: the equipment needs, the realistically expected performance limits and potential scientific applications in a micro-gravity environment. I have demonstrated in the laboratory that the SAI prototype is able to perform space atom interferometry successfully.
2007 (3 years) Doctorate thesis: “Atom Gravimetry: Improvement of Accuracy and New Geometries”, with highest distinction (très honorable), at Université Pierre et Marie Curie, Paris 6, and Observatoire de Paris – SYRTE. Grant delivered by the CNRS and by the CNES.
The goal of the absolute gravimeter of the Observatoire de Paris - SYRTE is to measure the gravitational acceleration with a relative accuracy of 10-9for the metrological "watt balance" project, led by the Laboratoire National d’Essai (LNE). During my thesis, we developed a new vacuum chamber, which allowed us to evaluate the limiting systematic errors. The gravimeter uses atom interferometry, where a cold cloud of 87Rb atoms in free fall is manipulated thanks to two-photon transitions. We reduced the measurement uncertainty below the goal, except for laser wave-front aberration effects. In parallel, we developed three new methods of atom interferometry measurement for space fundamental research and on-board applications.
2007 (6 month) Master 2 training period: nano-robots fabrication, Laboratoire de Photo-Physique Moléculaire, LPPM, Orsay.
This consisted in the manipulation of nano-sticks with the tip of an Atomic Force Microscope.
2010 Ph.D. in atomic physics at Université Pierre et Marie Curie UPMC Paris 6 carried through the Observatoire de Paris – SYRTE (Space Time Reference System) in the research group of A. Landragin: “atom interferometry and inertial sensor”.
2007 Master: atoms and molecules experimental physicsat UPMC
2006 Bachelor: fundamental physics at UPMC
2004 Two years diploma (french Deug): Mathematics at UPMC
Skills: atomic gravimeter - gradiometer - atom cooling - laser physics - optics - inertial sensors - physics test with space interferometers - atomic clocks - interaction light matter - electric fundamental metrology - seismology - european project coordination
Language: french, english, italian, german (basic)
Softwares: matlab, origin
“Operating an atom interferometer beyond its linear range”, Metrologia 46, 87–94 (2009)
“A cold atom pyramidal gravimeter with a single laser beam”, Appl. Phys. Lett.96, 134101 (2010), described in Nature Photonics 4, 340 - 341 (2010) and Laser Focus World.
“Comparison between two mobile absolute gravimeters : optical versus atomic interferometers”, Metrologia 47, L9-L11 (2010)
“Double diffraction in an atomic gravimeter”, Physical Review A 81, 013617, (2010)
“Comparison of 3 absolute gravimeters based on different methods for the e-MASS project” : IEEE (2010)
“The influence of transverse motion within an atomic gravimeter” New J. Phys. 13 065025 (2011)
“The 8th International Comparison of Absolute Gravimeters 2009”: Metrologia, 49(6), 666-684 (2012)
“Simultaneous measurement of gravity acceleration and gravity gradient with an atom interferometer”: Appl. Phys. Lett. 101, 114106 (2012)
“Precision Gravity Tests with Atom Interferometry in Space”:Nuclear Physics B – Proceedings Supplements 243-244-203, (2013)
“Principles of gravitational waves detection through atom interferometry”: International Journal of Modern Physics: Conference Series, 23 135-143, (2013)
“Sensitivity limits of a Raman atom interferometer as a gravity gradiometer”, Physical Review A89, 023607 (2014)
“Détermination de g pour la balance du watt”, Revue française de métrologie,n° 36, Vol. 2014-4, 11-27
“IAG : Symposium on terrestrial Gravimetry, static and mobile measurements”, Saint Petersburg, Russia
“EGAS : European Group On Atomic Systems ”, Gdansk, Poland
“YAO : Young Atom Opticians”, Vienna, Austria
“Quantum Meets Gravity and Metrology”, BadHonnef, Germany - 2nd best poster-Deutsche Physical Gesellschaft
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