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ID 34225
フルテキストURL
著者
Ghosh, Tarun Kanti Okayama University
Machida, K. Okayama University
抄録

We study properties of excited states of an array of weakly coupled quasi-two-dimensional Bose condensates by using the hydrodynamic theory. The spectrum of the axial excited states strongly depends on the coupling among the various discrete radial modes in a given symmetry. By including mode coupling within a given symmetry, the complete excitation spectrum of axial quasiparticles with various discrete radial nodes are presented. A single parameter which determines the strength of the mode coupling is identified. The excitation spectrum in the zero angular momentum sector can be observed by using the Bragg scattering experiments.

キーワード
einstein
condensate
superfluid
arrays
atoms
wave
gas
備考
Digital Object Identifer:10.1103/PhysRevA.72.053623
Published with permission from the copyright holder. This is the institute's copy, as published in Physical Review A, November 2005, Volume 72, Issue 5, Pages 5.
Publisher URL:http://dx.doi.org/10.1103/PhysRevA.72.053623
Direct access to Thomson Web of Science record
Copyright © 2005 The American Physical Society. All rights reserved.
発行日
2005-11
出版物タイトル
Physical Review A
72巻
5号
資料タイプ
学術雑誌論文
言語
English
査読
有り
DOI
Web of Sience KeyUT
Submission Path
light_and_optics/3