SciPost Submission Page
Collective oscillations of a two-component Fermi gas on the repulsive branch
by Tomasz Karpiuk, Piotr T. Grochowski, Mirosław Brewczyk, Kazimierz Rzążewski
|As Contributors:||Piotr Grochowski|
|Submitted by:||Grochowski, Piotr|
|Submitted to:||SciPost Physics|
|Subject area:||Atomic, Molecular and Optical Physics - Theory|
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.