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Updated: Jun 2, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Solitons as the early stage of quasicondensate formation during evaporative cooling
E Witkowska1, P Deuar, M Gajda
1Institute of Physics, Polish Academy of Sciences, Aleja Lotników, 02-668 Warsaw, Poland.
Abstract:
We calculate the evaporative cooling dynamics of trapped one-dimensional Bose-Einstein condensates for parameters leading to a range of condensates and quasicondensates in the final equilibrium state, using the classical fields method. We confirm that solitons are created during the evaporation process by the Kibble-Zurek mechanism, but subsequently dissipate during thermalization. However, their signature remains in the phase coherence length, which is approximately conserved during dissipation in this system.
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