Elementary Excitations in Quantum Fermi Liquid
Autor: | Tsintsadze, Nodar L., Tsintsadze, Levan N. |
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Rok vydání: | 2010 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | Landau's theory of Fermi liquids is generalized by incorporating the de Broglie waves diffraction. A newly derived kinetic equation of the Fermi particles is used to derive a general dispersion relation and the excitation of zero sound is studied. A new mode is found due to the quantum correction. It is shown that the zero sound can exist even in an ideal Fermi gas. We also disclose a new branch of frequency spectrum due to the weak interaction. Comment: Submitted to Physical Review Letters |
Databáze: | arXiv |
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