Potential of cold-atom airborne gravimetry to improve coastal gravity field and quasigeoid modelling
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Geodesy"
DOI: 10.1007/s00190-024-01839-0
Abstract: We investigate using the GIRAFE cold-atom gravimeter during an airborne gravity survey for improving gravity field and quasigeoid modelling. The study is conducted over the Bay of Biscay, France. Geoid/quasigeoid determination is usually a major… read more here.
Keywords: cold atom; quasigeoid; gravity; field quasigeoid ... See more keywords
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
Reinforcement learning in cold atom experiments
Sign Up to like & getrecommendations! Published in 2024 at "Nature Communications"
DOI: 10.1038/s41467-024-52775-8
Abstract: Cold atom traps are at the heart of many quantum applications in science and technology. The preparation and control of atomic clouds involves complex optimization processes, that could be supported and accelerated by machine learning.… read more here.
Keywords: learning cold; cold atom; control; reinforcement learning ... 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
Physics package based on intracavity laser cooling 87Rb atoms for space cold atom microwave clock
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics B"
DOI: 10.1088/1674-1056/ad4bc1
Abstract: This article proposes a new physics package to enhance the frequency stability of the space cold atom clock with the advantages of a microgravity environment. Clock working processes, including atom cooling, atomic state preparation, microwave… read more here.
Keywords: cold atom; space; physics package; clock ... 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
Universality of Efimov states in highly mass-imbalanced cold-atom mixtures with van der Waals and dipole interactions
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.033305
Abstract: We study three-body systems in a mass-imbalanced, two-component, cold-atom mixture, and we investigate the three-body parameter of their Efimov states for both bosonic and fermionic systems, with a major focus on the Er-Er-Li Efimov states.… read more here.
Keywords: van der; cold atom; efimov states; three body ... See more keywords
Optimal strategies for low-noise detection of atoms using resonant frequency modulation spectroscopy in cold-atom interferometers
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review A"
DOI: 10.1103/physreva.110.063706
Abstract: Resonant frequency modulation spectroscopy has been previously used as a highly-sensitive method for measuring the output of cold atom interferometers. Using a detailed model that accounts for optical saturation, laser intensities and atomic densities that… read more here.
Keywords: frequency modulation; spectroscopy; cold atom; atom interferometers ... 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