Results 11 to 20 of about 77,423 (235)
Probing Quantum Speed Limits with Ultracold Gases. [PDF]
Physical Review Letters, 2020 Quantum speed limits (QSLs) rule the minimum time for a quantum state to evolve into a distinguishable state in an arbitrary physical process. These fundamental results constrain a notion of distance traveled by the quantum state, known as the Bures ...
A. del Campo
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Optical spin conductivity in ultracold quantum gases
Physical Review Research, 2022 We show that the optical spin conductivity, which is a small ac response of a bulk spin current and elusive in condensed matter systems, can be measured in ultracold atoms. We demonstrate that this conductivity contains rich information on quantum states
Yuta Sekino +2 more
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Hanbury Brown Twiss Effect for Ultracold Quantum Gases [PDF]
Science, 2005 We have studied two-body correlations of atoms in an expanding cloud above and below the Bose-Einstein condensation threshold. The observed correlation function for a thermal cloud shows a bunching behavior, whereas the correlation is flat for a coherent
M. Schellekens +6 more
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Heteronuclear Efimov resonances in ultracold quantum gases [PDF]
National Science Review, 2016 The Efimov scenario is a universal three-body effect addressing many areas of modern quantum physics. It plays an important role in the transition between few- and many-body physics and has enabled important breakthroughs in the understanding of the ...
J. Ulmanis +3 more
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Spin-charge separation in ultracold quantum gases. [PDF]
Physical Review Letters, 2002 We investigate the physical properties of quasi-1D quantum gases of fermionic atoms confined in harmonic traps. Using the fact that for a homogeneous gas the low-energy properties are exactly described by a Luttinger model, we analyze the nature and ...
A. Recati +4 more
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Ultracold atomic quantum gases far from equilibrium [PDF]
Nuclear Physics A, 2006 We calculate the time evolution of a far-from-equilibrium initial state of a non-relativistic ultracold Bose gas in one spatial dimension. The non-perturbative approximation scheme is based on a systematic expansion of the two-particle irreducible ...
Aarts +23 more
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On 1+1 Dimensional Galilean Supersymmetry in Ultracold Quantum Gases [PDF]
, 2006 We discuss a 1+1 dimensional Galilean invariant model recently introduced in connection with ultracold quantum gases. After showing its relation to a nonrelativistic 2+1 Chern-Simons matter system, we identify the generators of the supersymmetry and its ...
Lozano, G. S. +3 more
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Frictionless quantum quenches in ultracold gases: a quantum dynamical microscope [PDF]
Physical Review A, 2011 In this article, a method is proposed to spatially scale up a trapped ultracold gas while conserving the quantum correlations of the initial many-body state.
del Campo, A.
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Crystals, 2023 In past years, optical lattices have been demonstrated as an excellent platform for making, understanding, and controlling quantum matters at nonlinear and fundamental quantum levels.
Zhiming Chen +3 more
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Quantum Thermalization Dynamics of Fermi Gases Quenched to the BEC-BCS Crossover. [PDF]
Adv Sci (Weinh)This study, reporting the first experimental realization of interaction quench far faster than the Fermi timescale in fermionic many‐body systems, explores real‐time quantum thermalization dynamics in the BEC‐BCS crossover. It observes prethermal states with distinct lifetimes after quantum quench, uncovers universal prethermal scaling, and observes ...
Yi L, Yu S, Wu M, Deng S, Wu H.
europepmc +2 more sources