Anderson–Bogoliubov Collective Excitations in Superfluid Fermi Gases at Nonzero Temperatures

被引：0
作者：
S. N. Klimin
H. Kurkjian
J. Tempere
机构：
[1] Universiteit Antwerpen,TQC
[2] Harvard University,Lyman Laboratory of Physics
来源：
Journal of Low Temperature Physics | 2019年 / 196卷
关键词：
Ultracold Fermi gases; Collective excitations; Anderson–Bogoliubov mode;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
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 the BCS–BEC crossover. The obtained spectra explain, both qualitatively and quantitatively, recent experimental results on Goldstone modes in atomic Fermi superfluids.
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页码：102 / 110
页数：8
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