“Slow” wave of zero-sound in degenerate Fermi gas

• Autorzy: Yuri Poluektov , Volodymyr Savchenko
• Języki publikacji: EN

Abstrakty

EN

The dynamic Hartree-Fock theory with point-like interaction is used to calculate the speed of sound and damping factor of a zero-sound wave propagating in a degenerate Fermi gas. This wave propagates slower than Fermi velocity. It is shown, that if the interaction is weak and density is small, then the damping of such a wave can be small. A possibility of discovering such waves in ultracold Fermi gases is discussed.

Słowa kluczowe

EN

Fermi gas; zero-sound; damping

• Czasopismo: Open Physics
• Rocznik: 2014
• Tom: 12
• Numer: 9
• Strony: 660-665

Daty

wydano

2014-09-01

online

2014-07-31

Twórcy

autor

Yuri Poluektov

• Akhiezer Institute for Theoretical Physics, NSC “Kharkov Institute of Physics and Technology”, 1, Akademicheskaya Str., Kharkov UA, 61108, Ukraine,

autor

Volodymyr Savchenko

• Akhiezer Institute for Theoretical Physics, NSC “Kharkov Institute of Physics and Technology”, 1, Akademicheskaya Str., Kharkov UA, 61108, Ukraine,

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Identyfikatory

DOI

10.2478/s11534-014-0491-6