Landau Fermi Liquid Theory
نویسندگان
چکیده
منابع مشابه
Fermi Liquid Theory: Principles
Landau developed the idea of quasiparticle excitations in the context of interacting Fermi systems. His theory is known as Fermi liquid theory. He introduced the idea phenomenologically, and later Abrikosov and Kalatnikov gave a formal derivation using diagrammatic perturbation theory to all orders. Landau suggested describing the excited states of the interacting system as in one-to-one corres...
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I have chosen to use a spin notation of “up” or “down” with respect to a convenient z axis rather than a more rotationally invariant formulation. The quantity εp is not the same as in the interacting system, but can be expanded in the same way about p = pF εp = εF + vF (p − pF )+ · · · (3) where εF , vF are not the same as in the noninteracting system. The single quasiparticle energy does not d...
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We construct a phenomenological Landau theory for the two-dimensional helical Fermi liquid found on the surface of a three-dimensional time-reversal invariant topological insulator. In the presence of rotation symmetry, interactions between quasiparticles are described by ten independent Landau parameters per angular momentum channel, by contrast with the two (symmetric and antisymmetric) Landa...
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We show that a strongly correlated Fermi system with the fermion condensate, which exhibits strong deviations from Landau Fermi liquid behavior, is driven into the Landau Fermi liquid by applying a small magnetic field B at temperature T = 0. This field-induced Landau Fermi liquid behavior provides the constancy of the KadowakiWoods ratio. A re-entrance into the strongly correlated regime is ob...
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Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. One of the most successful theories of a non-Fermi-liquid metallic state is the composite Fermi-liquid (CFL) theory...
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ژورنال
عنوان ژورنال: Australian Journal of Physics
سال: 1996
ISSN: 0004-9506
DOI: 10.1071/ph960079