Bose-Einstein condensation and Casimir effect of trapped ideal Bose gas in between two slabs
Department of Theoretical Physics, Indian Association for the Cultivation of Science, Jadavpur, Kolkata, 700032, India
Corresponding author: a email@example.com
Revised: 27 November 2006
Published online: 17 January 2007
We study the Bose-Einstein condensation for a 3-d system of ideal Bose gas which is harmonically trapped along two perpendicular directions and is confined in between two slabs along the other perpendicular direction. We calculate the Casimir force between the two slabs for this system of trapped Bose gas. At finite temperatures this force for thermalized photons in between two plates has a classical expression which is independent of ħ. At finite temperatures the Casimir force for our system depends on ħ. For the calculation of Casimir force we consider only the Dirichlet boundary condition. We show that below condensation temperature (Tc) the Casimir force for this non-interacting system decreases with temperature (T) and at , it is independent of temperature. We also discuss the Casimir effect on 3-d highly anisotropic harmonically trapped ideal Bose gas.
PACS: 05.30.-d – Quantum statistical mechanics / 05.30.Jp – Boson systems / 03.75.Hh – Static properties of condensates; thermodynamical, statistical, and structural properties
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2007