A Variational Sum-Rule Approach to Collective Excitations of a Trapped Bose-Einstein Condensate

Details A Variational Sum-Rule Approach to Collective Excitations of a Trapped Bose-Einstein Condensate A Variational Sum-Rule Approach to Collective Excitations of a Trapped Bose-Einstein Condensate

1998-03-11

arxiv.org/abs/cond-mat/9803130v3

J. Phys. Soc. Jpn., 68 (1999) 1477.

Physics

Condensed Matter

Soft Condensed Matter

11 pages, 2 figures, Revtex

Scientific paper

10.1143/JPSJ.68.1477

It is found that combining an excitation-energy sum rule with Fetter's trial
wave function gives almost exact low-lying collective-mode frequencies of a
trapped Bose-Einstein condensate at zero temperature.

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