A Variational Sum-Rule Approach to Collective Excitations of a Trapped Bose-Einstein Condensate
- 15 May 1999
- journal article
- Published by Physical Society of Japan in Journal of the Physics Society Japan
- Vol. 68 (5) , 1477-1480
- https://doi.org/10.1143/jpsj.68.1477
Abstract
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.Keywords
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