Dispersion and Damping of Phononic Excitations in Fermi Superfluid Gases in 2D
We calculate the sound velocity and the damping rate of the collective excitations of a 2D fermionic superfluid in a non-perturbative manner. Specifically, we focus on the Anderson−Bogoliubov excitations in the BEC-BCS crossover regime, as these modes have a sound-like dispersion at low mo...
| Published in: | Condensed Matter |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-02-01
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| Subjects: | |
| Online Access: | https://www.mdpi.com/2410-3896/5/1/13 |