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

Autor: Nguyen Van Thu, Dang Thanh Hai, Luong Thi Theu
Rok vydání: 2020
Předmět:
Zdroj: Journal of Experimental and Theoretical Physics. 130:321-326
ISSN: 1090-6509
1063-7761
Popis: 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 $$\ell $$ between two parallel plates, using double parabola approximation, we find that surface tension force decreases as $${{\ell }^{{ - 3}}}$$, whereas the Casimir force, in one-loop approximation of the quantum field, is proportional to $${{\ell }^{{ - 13/2}}}$$. The total force is also considered and its veer is found.
Databáze: OpenAIRE
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