Time-dependent condensate fraction in an analytical model

A. Simon and G. Wolschin

Physica A: Statistical Mechanics and its Applications, 2021, vol. 573, issue C

Abstract: We apply analytical solutions of a nonlinear boson diffusion equation (NBDE) that include boundary conditions at the singularity to calculate the time evolution of the entropy during evaporative cooling of ultracold atoms, and the time-dependent condensate fraction. For suitable initial conditions it is found to agree with available data on 23Na.

Keywords: Bose–Einstein condensation; Nonlinear boson diffusion equation; Analytical solution; Time-dependent entropy; Condensate fraction (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:573:y:2021:i:c:s0378437121002028

DOI: 10.1016/j.physa.2021.125930

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