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arXiv · 1908.07771

Collective oscillations of a two-component Fermi gas on the repulsive branch

Tomasz Karpiuk·Piotr T. Grochowski·Mirosław Brewczyk·Kazimierz Rzążewski
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Abstract

We calculate frequencies of collective oscillations of two-component Fermi gas that is kept on the repulsive branch of its energy spectrum. Not only is a paramagnetic phase explored, but also a ferromagnetically separated one. Both in-, and out-of-phase perturbations are investigated, showing contributions from various gas excitations. Additionally, we compare results coming from both time-dependent Hartree-Fock and density-functional approaches.

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Tomasz Karpiuk, Piotr T. Grochowski, Mirosław Brewczyk, Kazimierz Rzążewski. 2019-08-21. Collective oscillations of a two-component Fermi gas on the repulsive branch. https://doi.org/10.21468/scipostphys.8.4.066

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