Results 71 to 80 of about 77,423 (235)

Negative specific heat with trapped ultracold quantum gases

open access: yesNew Journal of Physics, 2014
The second law of thermodynamics normally prescribes that heat tends to disperse, but in certain cases it instead implies that heat will spontaneously concentrate.
M P Strzys, J R Anglin
doaj   +1 more source

Manipulating Majorana fermions in one-dimensional spin-orbit coupled atomic Fermi gases

open access: yes, 2012
Majorana fermions are promising candidates for storing and processing information in topological quantum computation. The ability to control such individual information carriers in trapped ultracold atomic Fermi gases is a novel theme in quantum ...
Drummond, P. D., Liu, Xia-Ji
core   +2 more sources

The Zel’dovich effect in harmonically trapped, ultracold quantum gases [PDF]

open access: yes, 2011
We investigate the Zel’dovich effect in the context of ultracold, harmonically trapped quantum gases. We suggest that currently available experimental techniques in cold-atom research offer an exciting opportunity for a direct observation of the Zel ...
A. Farrell   +2 more
semanticscholar   +1 more source

Dispersion of First Sound in a Weakly Interacting Ultracold Fermi Liquid

open access: yesAnnalen der Physik, Volume 537, Issue 11, November 2025.
 The weak‐interaction, low‐temperature region of the phase diagram of a Fermi gas the so‐called Fermi liquid regime, which has been somewhat overlooked in ultracold gases‐is investigated. Precise and measurable predictions are presented for the viscosity and dispersion of first sound to leading order in the scattering length.
Thomas Repplinger   +4 more
wiley   +1 more source

Quantum simulation of conductivity plateaux and fractional quantum Hall effect using ultracold atoms

open access: yesNew Journal of Physics, 2015
We analyze the role of impurities in the fractional quantum Hall effect using a highly controllable system of ultracold atoms. We investigate the mechanism responsible for the formation of plateaux in the resistivity/conductivity as a function of the ...
Nuria Barberán   +5 more
doaj   +1 more source

Thermometry Precision in Strongly Correlated Ultracold Lattice Gases [PDF]

open access: yes, 2015
The precise knowledge of the temperature of an ultracold lattice gas simulating a strongly correlated system is a question of both, fundamental and technological importance.
De Chiara, Gabriele   +3 more
core   +3 more sources

Mesoscopic effects in quantum phases of ultracold quantum gases in optical lattices [PDF]

open access: yes, 2009
We present a wide array of quantum measures on numerical solutions of one-dimensional Bose- and Fermi-Hubbard Hamiltonians for finite-size systems with open boundary conditions.
L. Carr   +7 more
semanticscholar   +1 more source

Low‐Energy Atomic Scattering: S‐Wave Relation Between the Interaction Potential and the Phase Shift

open access: yesAnnalen der Physik, Volume 537, Issue 11, November 2025.
The validity of the on‐shell approximation for s‐wave scattering is examined across one, two, and three dimensions using exactly solvable model interaction potentials. By comparing exact and approximate s‐wave components of the interaction potential, the analysis reveals that the approximation improves with increasing momentum and decreasing ...
Francesco Lorenzi, Luca Salasnich
wiley   +1 more source

Quantum control of spin correlations in ultracold lattice gases [PDF]

open access: yesPhysical Review A, 2013
2 ...
Hauke, P.   +3 more
openaire   +3 more sources

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