Eur. Phys. J. D (2014) 68: 76
https://doi.org/10.1140/epjd/e2014-40571-3

Regular Article

Temperature dependence of the entropy and the in situ size of a rotating condensate cloud in an optical lattice

Department of Physics, Faculty of Science, El Minia University, El Minia, Egypt

^a e-mail: elbadry.azza@yahoo.com

Received: 13 September 2013
Received in final form: 10 November 2013
Published online: 15 April 2014

Abstract

In this paper, the temperature dependence of the entropy and the in situ size (effective widths and effective area) and the expansion energy, of a rotating condensate cloud in an optical lattice are investigated. A simple semiclassical approximation, in comparison to the quantum-mechanical calculations, is suggested. The calculated results showed that the temperature dependence of the above mentioned parameters is changed in an optical lattice and depends crucially on the rotation rate. The obtained results provide useful qualitative theoretical results for future Bose Einstein condensation experiments in such traps.