A5080424671- Cold Atom Physics and Bose-Einstein Condensates
- Atomic and Subatomic Physics Research
- Advanced Frequency and Time Standards
- Geophysics and Sensor Technology
- Pulsars and Gravitational Waves Research
- Quantum Information and Cryptography
- Cosmology and Gravitation Theories
- Seismic Waves and Analysis
- Distributed and Parallel Computing Systems
- Quantum Electrodynamics and Casimir Effect
- Advanced Thermodynamics and Statistical Mechanics
- Advanced Materials Characterization Techniques
- Parallel Computing and Optimization Techniques
- Quantum optics and atomic interactions
- Quantum, superfluid, helium dynamics
- Dark Matter and Cosmic Phenomena
- Geophysics and Gravity Measurements
- Radioactive Decay and Measurement Techniques
- Particle Detector Development and Performance
- Electrochemical Analysis and Applications
- Advanced Fiber Laser Technologies
- Atmospheric Ozone and Climate
Sorbonne Université
2023-2024
Université d'Avignon et des Pays de Vaucluse
2024
Laboratoire Souterrain à Bas Bruit
2024
Centre National de la Recherche Scientifique
2020-2024
Systèmes de Référence Temps-Espace
2023-2024
Université Paris Sciences et Lettres
2023-2024
Observatoire de Paris
2023-2024
Laboratoire Photonique, Numérique et Nanosciences
2019-2022
Université de Bordeaux
2020
University of Southampton
2020
Abstract We propose in this White Paper a concept for space experiment using cold atoms to search ultra-light dark matter, and detect gravitational waves the frequency range between most sensitive ranges of LISA terrestrial LIGO/Virgo/KAGRA/INDIGO experiments. This interdisciplinary experiment, called Atomic Experiment Dark Matter Gravity Exploration (AEDGE), will also complement other planned searches exploit synergies with wave detectors. give examples extended sensitivity matter offered...
The accelerated expansion of the universe motivates a wide class scalar field theories that modify general relativity (GR) on large scales. Such require screening mechanism to suppress new force in regions where weak limit GR has been experimentally tested. We have used atom interferometry measure acceleration an toward macroscopic test mass inside high vacuum chamber, forces can be unscreened. Our measurement shows no evidence forces, result places stringent bounds chameleon and symmetron...
We report correlations in underground seismic measurements with horizontal separations of several hundreds meters to a few kilometers the frequency range 0.01Hz 40Hz. These could threaten science goals planned interferometric gravitational-wave detectors such as Einstein Telescope well atom interferometers MIGA and ELGAR. use from four different sites, i.e. former Homestake mine (USA) two candidate sites for Telescope, Sos Enattos (IT) Euregio Maas-Rhein (NL-BE-DE) site housing detector,...
Abstract This article contains a summary of the White Paper submitted in 2019 to ESA Voyage 2050 process, which was subsequently published EPJ Quantum Technology (AEDGE Collaboration et al. Quant. Technol. 7 ,6 2020). We propose this concept for space experiment using cold atoms search ultra-light dark matter, and detect gravitational waves frequency range between most sensitive ranges LISA terrestrial LIGO/Virgo/KAGRA/INDIGO experiments. interdisciplinary experiment, called Atomic...
We present a novel atom interferometer configuration that combines large momentum transfer with the enhancement of an optical resonator for purpose measuring gravitational strain in horizontal directions. Using Bragg diffraction and taking advantage gain provided by resonator, we achieve up to $8\ensuremath{\hbar}k$ mW level power cm-sized resonating waist. Importantly, our experiment uses original design allows beam waist eliminates need trap atoms cavity modes. demonstrate inertial...
Abstract We describe the realization and characterization of a compact, autonomous fiber laser system that produces optical frequencies required for cooling, trapping, manipulation, detection 87 Rb atoms - typical atomic species emerging quantum technologies. This device, customized from Muquans company, is designed use in challenging operating environment Laboratoire Souterrain à Bas Bruit (LSBB) France, where new large scale atom interferometer being constructed underground MIGA antenna....
Gravitational Waves (GWs) were observed for the first time in 2015, one century after Einstein predicted their existence. There is now growing interest to extend detection bandwidth low frequency. The scientific potential of multi-frequency GW astronomy enormous as it would enable obtain a more complete picture cosmic events and mechanisms. This unique entirely new opportunity future astronomy, success which depends upon decisions being made on existing infrastructures. prospect combining...
Fluctuations of the earth's gravity field are a major noise source for ground-based experiments investigating general relativity phenomena such as Gravitational Waves (GWs). Mass density variations caused by local seismic or atmospheric perturbations determine spurious differential displacements free falling test masses, what is called Gravity Gradient Noise (GGN); it mimics GW effects. This GGN expected to become dominant in infrasound domain and must be tackled future realization...
We present the design, construction, and characterization of Bitter-type electromagnets which can generate high magnetic fields under continuous operation with efficient heat removal for cold atom experiments. The are constructed from a stack alternating layers consisting copper arcs insulating polyester spacers. Efficient cooling is achieved via parallel rectangular water channels between low resistance to flow; ratio water-cooled surface area volume ensures short length scale (~1 mm)...
Experiments in Atomic, Molecular, and Optical (AMO) physics require precise accurate control of digital, analog, radio frequency (RF) signals. We present hardware based on a field programmable gate array core that drives various modules via simple interface bus. The system supports an operating 10 MHz memory depth 8 M (223) instructions, both easily scalable. Successive experimental sequences can be stacked with no dead time synchronized external events at any instructions. Two or more units...
Abstract The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise laboratory LSBB in South-East France, it will serve as a prototype for gravitational wave detectors with horizontal baseline 150 meters. Three spatially separated interferometers be driven by two common counter-propagating lasers measurement gradient...
The absolute mass of neutrinos and their nature are presently unknown. Aggregate matter has a coherent weak charge leading to repulsive interaction mediated by neutrino pair. virtual non-relativistic at micron distances, giving distinct behavior for Dirac versus Majorana terms. This effective potential allows the disentanglement or via magnitude distance dependence. We propose an experiment search this based on concept that density-dependent atomic probe with material source in one arm clock...
We report correlations in underground seismic measurements with horizontal separations of several hundreds meters to a few kilometers the frequency range 0.01 40 Hz. These could threaten science goals planned interferometric gravitational-wave detectors such as Einstein Telescope well atom interferometers MIGA and ELGAR. use from four different sites, i.e., former Homestake mine (USA) two candidate sites for Telescope, Sos Enattos (IT), Euregio Maas-Rhein (NL-BE-DE) site housing detector,...
The design of single chip current source based on a common power operational amplifier is presented and demonstrated for the purpose controlling applied magnetic fields using bias/shim electromagnets in cold atom experiments. efficacy realized via application to red-detuned polarization-gradient cooling $^{87}$Rb down 3 $\mu$K. Further, we demonstrate Raman spectroscopy these devices apply so generate precise, accurate, reproducible field. This work intended as short tutorial new graduate...
The design of a single chip current source based on common power operational amplifier is presented and demonstrated for the purpose controlling applied magnetic fields using bias/shim electromagnets in cold atom experiments. efficacy realized via application to red-detuned polarization-gradient cooling 87Rb down 3 μK. Furthermore, we demonstrate Raman spectroscopy these devices apply so generate precise, accurate, reproducible field. This work intended as short tutorial new graduate...
Addressing the optical clock transition of alkaline-earth-like atoms has garnered increasing interest in context a future redefinition second, as well for fundamental physics based on inertial sensors. To be accessible bosonic atoms, this necessitates external coupling. Here we propose scheme utilizing midinfrared to deep-infrared dressing drive three-level coherence that mixes into and therefore addresses atoms. Published by American Physical Society 2024
We present a novel atom interferometer configuration that combines large momentum transfer with the enhancement of an optical resonator for purpose measuring gravitational strain in horizontal directions. Using Bragg diffraction and taking advantage gain provided by resonator, we achieve up to $8\hbar k$ mW level power cm-sized resonating waist. Importantly, our experiment uses original design allows beam waist eliminates need trap atoms cavity modes. demonstrate inertial sensitivity...
Located far from anthropical disturbances and with low seismic magnetic background noise profiles, the LSBB facility is ideal location for a new hybrid detector study of space-time strain. The MIGA infrastructure [1], utilizes an array atom interferometers manipulated by same beam, resonant optical field 150 m long cavity. constitutes method geophysics, characterization spatial temporal variations local gravity, demonstrator future decihertz gravitational wave observation. Such requires...
We describe the realization and characterization of a compact, autonomous fiber laser system that produces optical frequencies required for cooling, trapping, manipulation, detection $^{87}$Rb atoms - typical atomic species emerging quantum technologies. This device, customized from Muquans company, is designed use in challenging operating environment Laboratoire Souterrain \`{a} Bas Bruit (LSBB) France, where new large scale atom interferometer being constructed underground MIGA antenna....
The absolute mass of neutrinos and their nature are presently unknown. Aggregate matter has a coherent weak charge leading to repulsive interaction mediated by neutrino pair. Near its range at micron distances the virtual non-relativistic, giving distinct behavior for Dirac versus Majorana terms. magnitude distance dependence effective potential disentangle these fundamental properties neutrinos. We propose an experiment search this based on concept that density dependent atomic probe with...
Abstract The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise laboratory LSBB in South-East France, it will serve as a prototype for gravitational wave detectors with horizontal baseline 150 meters. Three spatially separated interferometers be driven by two common counter-propagating lasers measurement gradient...
We report the realization of a large scale gravity antenna based on matter-wave interferometry, MIGA project. This experiment consists in an array cold Rb sources correlated by 150 m long optical cavity. is construction at LSBB underground laboratory, site that benefits from low background noise and ideal premise to carry out precision measurements. The facility will be demonstrator for new generation GW detector atom interferometry could open infrasound window observation GWs. describe here...
The Matter-wave laser Interferometric Gravitation Antenna (MIGA) is an underground instrument using cold-atom interferometry to perform precision measurements of gravity gradients and strains. Following its installation at the low noise laboratory LSBB in South-East France, it will serve as a prototype for gravitational wave detectors with horizontal baseline 150 meters. Three spatially separated interferometers be driven by two common counter-propagating lasers measurement gradient along...