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Updated: Mar 17, 2026

Cooling an Optically Trapped Ultracold Fermi Gas by Periodical Driving
Published on: March 30, 2017
Comment on "Temperature inversion in long-range interacting systems"
1Sternberg Astronomical Institute (GAISh) of Lomonosov Moscow State University, Universitetski prospekt 13, 119992 Moscow, Russia and Space Research Institute (IKI) of Russian Academy of Sciences, Profsoyuznaya street 84/32, 117997 Moscow, Russia.
Abstract:
In the recent paper by Teles et al. [Phys. Rev. E 92, 020101 (2015)]PRESCM1539-375510.1103/PhysRevE.92.020101, it was suggested that the inversed temperature profiles in various astrophysical objects-ranging from the solar corona to the interstellar molecular clouds-can be explained by the specific features of relaxation in the long-range interacting systems. Here, we show that this mechanism can really work in the self-gravitating interstellar gaseous clouds; but it is irrelevant in the solar (and stellar) coronas where stratification of density is produced by the external gravitational field.
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