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arXiv · 1408.5826

Casimir effect for a Bose-Einstein condensate inside a cylindrical tube

Shyamal Biswas·Saugata Bhattacharyya·Amit Agarwal
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Abstract

We explore Casimir effect on an interacting Bose-Einstein condensate (BEC) inside a cylindrical tube. The Casimir force for the confined BEC comprises of (i) a mean-field part arising from the spatial inhomogeneity of the condensate order parameter, and (ii) a quantum fluctuation part arising from the confinement of Bogoliubov excitations in the condensate. Our analytical result predicts Casimir force on a cylindrical shallow of $^4$He well below the $\lambda$-point, and can be tested experimentally.

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Shyamal Biswas, Saugata Bhattacharyya, Amit Agarwal. 2014-08-25. Casimir effect for a Bose-Einstein condensate inside a cylindrical tube. https://doi.org/10.1088/0953-4075/49/1/015301

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