Superfluidity of an interacting trapped quasi-two-dimensional Bose gas
Journal Article
·
· Physical Review. A
- Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark)
- ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, University of Queensland, Brisbane, QLD 4072 (Australia)
- Jack Dodd Centre for Photonics and Ultra-Cold Atoms, Department of Physics, University of Otago (New Zealand)
We investigate the harmonically trapped interacting Bose gas in a quasi-two-dimensional geometry using the classical field method. The system exhibits quasi-long-range order and nonclassical rotational inertia at temperatures below the Berezinskii-Kosterlitz-Thouless crossover to the superfluid state. In particular, we compute the scissors-mode oscillation frequencies and find that the irrotational mode changes its frequency as the temperature is swept across the crossover thus providing microscopic evidence for the emergence of superfluidity.
- OSTI ID:
- 21140539
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 77; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
Similar Records
Universal correlations and coherence in quasi-two-dimensional trapped Bose gases
Kosterlitz-Thouless Transition of the Quasi-Two-Dimensional Trapped Bose Gas
Finite-temperature phase transitions in quasi-two-dimensional spin-1 Bose gases
Journal Article
·
Thu Apr 15 00:00:00 EDT 2010
· Physical Review. A
·
OSTI ID:21408680
Kosterlitz-Thouless Transition of the Quasi-Two-Dimensional Trapped Bose Gas
Journal Article
·
Fri May 16 00:00:00 EDT 2008
· Physical Review Letters
·
OSTI ID:21132405
Finite-temperature phase transitions in quasi-two-dimensional spin-1 Bose gases
Journal Article
·
Mon Mar 15 00:00:00 EDT 2010
· Physical Review. A
·
OSTI ID:21408473