Adiabatic loading of rotating bosons into 1D optical lattice

Authors: SHEMI S. M. SOLIMAN, YEHYA ELSHARKAWY

Abstract: In this paper, the entropy-temperature curves are investigated for rotating boson gases in a 1D optical lattice with transverse harmonic confinement. Regimes at which the atomic sample can be significantly heated or cooled by adiabatically changing the lattice depth and the rotation rate are demonstrated. The suggested approach, which is the semiclassical approximation, includes the correction due to the finite size effect. The obtained results show that the entropy--temperature curves have a monotonically increasing nature for this system, in agreement with the standard thermodynamic arguments. For fixed temperature, entropy always increases with the increasing of the rotation rate or optical potential depth.

Keywords: Entropy of boson systems, static properties of condensates, semiclassical theories and applications

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