Waves on an interface between two phase-separated Bose-Einstein condensates

被引：0
|
作者：
Mazets, I.E. [1 ]
机构：
[1] Ioffe Physico-Technical Institute, 194021 St. Petersburg, Russia
来源：
| 2002年 / American Physical Society卷 / 65期
关键词：
Interfaces (materials) - Numerical methods - Oscillations - Phase separation - Spectrum analysis;
D O I：
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中图分类号：
学科分类号：
摘要：
Since a study of excited states of an immiscible system was lacking, normal modes for intercomponent boundary oscillations in the weakly segregated phase regime was considered. The Bogoliubov spectrum of a translationally invariant mixed BEC was obtained, but it revealed only the fact that such a homogeneous system was dynamically unstable against long-wavelength perturbations. Hence, tends to become phase separated.
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