Phys. Rev. A 57, 518–521 (1998)Sound propagation in a cylindrical Bose-condensed gasReceived 2 September 1997; published in the issue dated January 1998 We study the normal modes of a cylindrical Bose condensate at T=0 using the linearized time-dependent Gross-Pitaevskii equation in the Thomas-Fermi limit. These modes are relevant to the recent observation of pulse propagation in long, cigar-shaped traps. We find that pulses generated in a cylindrical condensate propagate with little spread at a speed c=√gn̄/m, where n̄ is the average density of the condensate over its cross-sectional area. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevA.57.518
DOI:
10.1103/PhysRevA.57.518
PACS:
03.75.Fi, 67.40.Hf, 67.57.Jj
See AlsoComment: J. B. Sokoloff, Comment on ‘‘Microwave absorption by dissolved DNA’’, Phys. Rev. A 39, 2745 (1989). |
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