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Landau-Khalatnikov phonon damping in strongly interacting Fermi gases

Abstract : We derive the phonon damping rate due to the four-phonon Landau-Khalatnikov process in low temperature strongly interacting Fermi gases using quantum hydrodynamics, correcting and extending the original calculation of Landau and Khalatnikov [ZhETF, 19 (1949) 637]. Our predictions can be tested in state-of-the-art experiments with cold atomic gases in the collisionless regime.
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https://hal.archives-ouvertes.fr/hal-01350507
Contributor : Yvan Castin <>
Submitted on : Tuesday, January 3, 2017 - 2:09:30 PM
Last modification on : Friday, February 12, 2021 - 10:58:07 AM
Long-term archiving on: : Tuesday, April 4, 2017 - 1:26:17 PM

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Hadrien Kurkjian, Yvan Castin, Alice Sinatra. Landau-Khalatnikov phonon damping in strongly interacting Fermi gases. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2016, 116, pp.40002. ⟨10.1209/0295-5075/116/40002⟩. ⟨hal-01350507v3⟩

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