Anderson–Bogoliubov Collective Excitations in Superfluid Fermi Gases at Nonzero Temperatures
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Low Temperature Physics"
DOI: 10.1007/s10909-019-02160-3
Abstract: The Anderson–Bogoliubov branch of collective excitations in a condensed Fermi gas is treated using the effective bosonic action of Gaussian pair fluctuations. The spectra of collective excitations are treated for finite temperature and momentum throughout… read more here.
Keywords: bogoliubov collective; collective excitations; excitations superfluid; fermi gases ... See more keywords
Tuning dissipation and excitations in superfluid Fermi gases with a moving impurity
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review A"
DOI: 10.1103/physreva.100.033611
Abstract: We develop a method to extract the dissipation for a heavy moving impurity immersed in superfluid Fermi gases. The drag force is derived analytically. As a reward, we are able to extract the dynamical structure… read more here.
Keywords: fermi gases; dissipation; superfluid fermi; moving impurity ... See more keywords