Casimir and Surface Tension Forces on a Single Interacting Bose–Einstein Condensate in Canonical Ensemble

The forces on a single Bose–Einstein condensate confined between two parallel plates consist of two components, namely, surface tension force and Casimir force. In canonical ensemble, these forces are quite different from the one in grand canonical ensemble. In small region with distance between two...

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Bibliographic Details
Published in:Journal of experimental and theoretical physics 2020-03, Vol.130 (3), p.321-326
Main Authors: Nguyen Van Thu, Theu, Luong Thi, Hai, Dang Thanh
Format: Article
Language:English
Subjects:
Approximation
Atoms
Bose-Einstein condensates
Classical and Quantum Gravitation
Electromagnetic fields
Elementary Particles
Industrial research
Mathematical analysis
Molecules
Optics
Parallel plates
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Field Theory
Relativity Theory
Solid State Physics
Surface tension
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Summary:The forces on a single Bose–Einstein condensate confined between two parallel plates consist of two components, namely, surface tension force and Casimir force. In canonical ensemble, these forces are quite different from the one in grand canonical ensemble. In small region with distance between two parallel plates, using double parabola approximation, we find that surface tension force decreases as , whereas the Casimir force, in one-loop approximation of the quantum field, is proportional to . The total force is also considered and its veer is found.
ISSN:1063-7761
1090-6509
DOI:10.1134/S1063776120020168