Superfluidity of an interacting trapped quasi-two-dimensional Bose gas. Simula, P, T, Davis, J, M, Blakie, & B, P Phys. Rev. A, 77(2):023618, 2008.
Superfluidity of an interacting trapped quasi-two-dimensional Bose gas [link]Paper  doi  abstract   bibtex   
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.
@article{ Simula:2008fn,
  author = {Simula, T P and Davis, M J and Blakie, P B},
  title = {{Superfluidity of an interacting trapped quasi-two-dimensional Bose gas}},
  journal = {Phys. Rev. A},
  year = {2008},
  volume = {77},
  number = {2},
  pages = {023618},
  affiliation = {Univ Aarhus, Dept Phys {\&} Astron, Lundbeck Fdn Theort Ctr Quantum Syst Res, DK-8000 Aarhus C, Denmark},
  doi = {10.1103/PhysRevA.77.023618},
  language = {English},
  read = {Yes},
  rating = {0},
  date-added = {2009-02-03T21:39:15GMT},
  date-modified = {2015-04-08T22:48:10GMT},
  abstract = {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.},
  url = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLRAAN000077000002023618000001&idtype=cvips&gifs=yes},
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}

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