Simulation-based evaluation of a cold atom interferometry gradiometer concept for gravity field recovery
Sign Up to like & getrecommendations! Published in 2017 at "Advances in Space Research"
DOI: 10.1016/j.asr.2017.12.005
Abstract: Abstract The prospects of future satellite gravimetry missions to sustain a continuous and improved observation of the gravitational field have stimulated studies of new concepts of space inertial sensors with potentially improved precision and stability.… read more here.
Keywords: cold atom; atom interferometry; field; gradiometer ... See more keywords
Increasing the length of free-falling path with homogeneous bias field for compact cold atom interferometers by configuring MOT coils
Sign Up to like & getrecommendations! Published in 2020 at "AIP Advances"
DOI: 10.1063/5.0022637
Abstract: In a cold atom interferometer, a bias magnetic field, usually generated by a solenoid or a set of coils, is used to select specific Raman transitions of atoms in the interference region, and its inhomogeneity… read more here.
Keywords: cold atom; bias field; field; mot coils ... See more keywords
Monitoring currents in cold-atom circuis
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.013621
Abstract: Complex circuits of cold atoms can be exploited to devise new protocols for the diagnostics of cold-atoms systems. Specifically, we study the quench dynamics of a condensate confined in a ring-shaped potential coupled with a… read more here.
Keywords: atom circuis; cold atom; monitoring currents; ring condensate ... See more keywords
Synchronization of a self-sustained cold-atom oscillator
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review A"
DOI: 10.1103/physreva.97.043406
Abstract: Nonlinear oscillations and synchronisation phenomena are ubiquitous in nature. We study the synchronization of self oscillating magneto-optically trapped cold atoms to a weak external driving. The oscillations arise from a dynamical instability due the competition… read more here.
Keywords: sustained cold; cold atom; self sustained; oscillator ... See more keywords
Scalable Cold-Atom Quantum Simulator for Two-Dimensional QED.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.127.130504
Abstract: We propose a scalable analog quantum simulator for quantum electrodynamics in two spatial dimensions. The setup for the U(1) lattice gauge field theory employs interspecies spin-changing collisions in an ultracold atomic mixture trapped in an… read more here.
Keywords: cold atom; quantum simulator; atom quantum; quantum ... See more keywords
Tuning Long-Range Fermion-Mediated Interactions in Cold-Atom Quantum Simulators.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.083401
Abstract: Engineering long-range interactions in cold-atom quantum simulators can lead to exotic quantum many-body behavior. Fermionic atoms in ultracold atomic mixtures can act as mediators, giving rise to long-range Ruderman-Kittel-Kasuya-Yosida-type interactions characterized by the dimensionality and… read more here.
Keywords: interactions cold; long range; cold atom; range ... See more keywords
Compact chip-scale guided cold atom gyrometers for inertial navigation: Enabling technologies and design study
Sign Up to like & getrecommendations! Published in 2019 at "Science"
DOI: 10.1116/1.5120348
Abstract: This work reviews the topic of rotation sensing with compact cold atom interferometers. A representative set of compact free-falling cold atom gyroscopes is considered because, in different respects, they establish a rotation-measurement reference for cold… read more here.
Keywords: atom; cold atom; technologies design; enabling technologies ... See more keywords
Testing gravity with cold-atom clocks in space
Sign Up to like & getrecommendations! Published in 2020 at "European Physical Journal D"
DOI: 10.1140/epjd/e2020-10167-7
Abstract: Atomic Clock Ensemble in Space (ACES) is a mission designed to test Einstein’s theory of General Relativity from the International Space Station (ISS). A primary frequency standard based on laser cooled caesium atoms (PHARAO) and… read more here.
Keywords: cold atom; space; clocks space; atom clocks ... See more keywords
Coherence time of a cold-atom laser below threshold.
Sign Up to like & getrecommendations! Published in 2020 at "Optics letters"
DOI: 10.1364/ol.402975
Abstract: We experimentally study the coherence time of a below-threshold Raman laser in which the gain medium is a gas of magneto-optically trapped atoms. The second-order optical coherence exhibits photon bunching with a correlation time that… read more here.
Keywords: laser; cold atom; coherence time; coherence ... See more keywords
Cold-atom shaping with MEMS scanning mirrors.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.475353
Abstract: We demonstrate the integration of micro-electro-mechanical-systems (MEMS) scanning mirrors as active elements for the local optical pumping of ultra-cold atoms in a magneto-optical trap. A pair of MEMS mirrors steer a focused resonant beam through… read more here.
Keywords: shaping mems; cold atom; atom shaping; scanning mirrors ... See more keywords
Enhanced Readout from Spatial Interference Fringes in a Point-Source Cold Atom Inertial Sensor
Sign Up to like & getrecommendations! Published in 2023 at "Sensors"
DOI: 10.3390/s23115071
Abstract: When the initial size of an atom cloud in a cold atom interferometer is negligible compared to its size after free expansion, the interferometer is approximated to a point-source interferometer and is sensitive to rotational… read more here.
Keywords: spatial interference; atom; cold atom; interference ... See more keywords