The Repulsive Casimir-Type Forces of a Weakly Interacting Bose–Einstein Condensate Gas

被引：0
|
作者：
Pham The Song
机构：
[1] Tây Bắc University,Faculty of Natural Sciences
来源：
Journal of Low Temperature Physics | 2022年 / 206卷
关键词：
Finite-size effect; Interacting Bose gas; Casimir-type effect; Grand canonical ensemble; Canonical ensemble;
D O I：
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摘要：
By means of the quantum field theory (QFT) in the one-loop approximation, we consider the finite-size effect of the quantum fluctuation energy of a weakly interacting Bose–Einstein condensate (BEC) gas confined between two parallel plates of a three-dimensional rectangular. We find the repulsive Casimir-type force acts on the plates when either Zaremba boundary condition (BC) or anti-periodic BC is imposed. Our results are obtained in both grand canonical ensemble (GCE) and canonical ensemble (CE).
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页码：16 / 31
页数：15
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