Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-08-29
Phys. Rev. Lett. 96, 060404 (2006)
Physics
Condensed Matter
Other Condensed Matter
revtex4, four pages, three figures. v2: updated to published version. Several additions to figures, and better explanations in
Scientific paper
10.1103/PhysRevLett.96.060404
We apply the Projected Gross-Pitaevskii equation (PGPE) formalism to the experimental problem of the shift in critical temperature $T_c$ of a harmonically confined Bose gas as reported in Gerbier \emph{et al.} [Phys. Rev. Lett. \textbf{92}, 030405 (2004)]. The PGPE method includes critical fluctuations and we find the results differ from various mean-field theories, and are in best agreement with experimental data. To unequivocally observe beyond mean-field effects, however, the experimental precision must either improve by an order of magnitude, or consider more strongly interacting systems. This is the first application of a classical field method to make quantitative comparison with experiment.
Blakie Blair P.
Davis Matthew J.
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