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.
Cited by 1
Piotr T. Grochowski et al., Breathing Mode of a Bose-Einstein Condensate Immersed in a Fermi Sea
Phys. Rev. Lett. 125, 103401 (2020) [Crossref]
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- 1 Uniwersytet w Białymstoku / University of Białystok [UwB]
- 2 Centrum Fizyki Teoretycznej PAN / Center for Theoretical Physics [CFT PAN]