Abstract
Using field theory we calculate the Casimir energy and Casimir force of two-component Bose-Einstein condensates restricted between two parallel plates, in which Dirichlet and periodic boundary conditions applied. Our results show that, in one-loop approximation, the Casimir force equals to summation of the one of each component and it is vanishing in some cases: (i) inter-distance between two plates becomes large enough; (ii) intraspecies interaction is zero; (iii) interspecies interaction is full strong segregation.
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Acknowledgements
It is our pleasure to acknowledge valuable discussions with Prof. Tran Huu Phat, Jurgen Schiefele, Shyamal Biswas and Nguyen Thi Tham.
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Van Thu, N., Theu, L.T. Casimir Force of Two-Component Bose–Einstein Condensates Confined by a Parallel Plate Geometry. J Stat Phys 168, 1–10 (2017). https://doi.org/10.1007/s10955-017-1800-4
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DOI: https://doi.org/10.1007/s10955-017-1800-4