## [Theory of ultracold atomic Fermi gases](https://arxiv.org/pdf/0706.3360.pdf)
## 2015 [Second Sound in Ultracold Atomic Gases - Lev Pitaevskii and Sandro Stringari](https://arxiv.org/pdf/1510.01306.pdf)
2017 [Tunable zero and first sounds in ultracold Fermi gases with Rabi coupling](https://arxiv.org/pdf/1703.02634.pdf)
## two-component Fermi gas
- [zero-to-first sound transition](https://books.google.ru/books?id=a14f8r_r-twC&pg=PA89&lpg=PA89&dq=zero+and+first+sounds+in+ultracold+Fermi+gases&source=bl&ots=VyVQ9n1Dbx&sig=ACfU3U3QwiG9Sz15c8gvjgG1OlOJxkJWvA&hl=en&sa=X&ved=2ahUKEwizjOWnnob0AhXFCRAIHZdUASUQ6AF6BAgLEAM#v=onepage&q=zero%20and%20first%20sounds%20in%20ultracold%20Fermi%20gases&f=false)