Results 11 to 20 of about 326,486 (291)

Quantum many-body models with cold atoms coupled to photonic crystals [PDF]

open access: yesNature Photonics, 2015
Using cold atoms to simulate strongly interacting quantum systems represents an exciting frontier of physics. However, as atoms are nominally neutral point particles, this limits the types of interactions that can be produced.
Chang, D. E.   +5 more
core   +7 more sources

Cold and Ultracold Rydberg Atoms in Strong Magnetic Fields

open access: yesPhysics Reports, 2009
Cold Rydberg atoms exposed to strong magnetic fields possess unique properties which open the pathway for an intriguing many-body dynamics taking place in Rydberg gases consisting of either matter or anti-matter systems.
Ackermann   +231 more
core   +3 more sources

Topological quantum matter with cold atoms

open access: yesAdvances in Physics, 2018
This is an introductory review of the physics of topological quantum matter with cold atoms. Topological quantum phases, originally discovered and investigated in condensed matter physics, have recently been explored in a range of different systems ...
Yan, Hui   +4 more
core   +3 more sources

Multimode Collective Atomic Recoil Lasing in Free Space

open access: yesAtoms, 2020
Cold atomic clouds in collective atomic recoil lasing are usually confined by an optical cavity, which forces the light-scattering to befall in the mode fixed by the resonator.
Angel T. Gisbert, Nicola Piovella
doaj   +1 more source

Gating Ratchet for Cold Atoms [PDF]

open access: yesPhysical Review Letters, 2008
We demonstrate experimentally a gating ratchet with cold rubidium atoms in a driven near-resonant optical lattice. A single-harmonic periodic modulation of the optical potential depth is applied, together with a single-harmonic rocking force. Directed motion is observed as a result of the breaking of the symmetries of the system.
Gommers, R   +3 more
openaire   +3 more sources

Cold Heteronuclear Atom-Ion Collisions [PDF]

open access: yesPhysical Review Letters, 2010
We study cold heteronuclear atom ion collisions by immersing a trapped single ion into an ultracold atomic cloud. Using ultracold atoms as reaction targets, our measurement is sensitive to elastic collisions with extremely small energy transfer. The observed energy-dependent elastic atom-ion scattering rate deviates significantly from the prediction of
Zipkes C   +4 more
openaire   +5 more sources

Many-body quantum chaos in stroboscopically-driven cold atoms

open access: yesCommunications Physics, 2023
In quantum chaotic systems, the spectral form factor (SFF), defined as the Fourier transform of two-level spectral correlation function, is known to follow random matrix theory (RMT), namely a ‘ramp’ followed by a ‘plateau’ in late times.
Ceren B. Dağ   +3 more
doaj   +1 more source

Superfluids, Fluctuations and Disorder

open access: yesApplied Sciences, 2019
We present a field-theory description of ultracold bosonic atoms in the presence of a disordered external potential. By means of functional integration techniques, we aim to investigate and review the interplay between disordered energy landscapes and ...
Alberto Cappellaro, Luca Salasnich
doaj   +1 more source

Observation of spin-space quantum transport induced by an atomic quantum point contact

open access: yesNature Communications, 2021
Cold atoms have recently become a versatile platform for the study of quantum transport phenomena. Here the authors realize an alternative experimental scheme for quantum transport with cold atoms, by using spin-dependent impurity scattering in a spinful
Koki Ono   +5 more
doaj   +1 more source

Mollow triplet in cold atoms

open access: yesNew Journal of Physics, 2019
In this paper, we measure the spectrum of light scattered by a cold atomic cloud driven by a strong laser beam. The experimental technique is based on heterodyne spectroscopy coupled to single-photon detectors and intensity correlations. At resonance, we
Luis Ortiz-Gutiérrez   +6 more
doaj   +1 more source

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