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Landau theory of Fermi liquids reformulated

โœ Scribed by Ch.G. van Weert; M.C.J. Leermakers; A.M.J. Schakel

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
555 KB
Volume
138
Category
Article
ISSN
0378-4371

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โœฆ Synopsis

The Landau theory of Fermi liquids is reformulated by taking the thermodynamic potential, rather than the energy density, as the primary concept. This leads to a new definition of the quasiparticle interaction function which can be identified with the physical forward scattering amplitude of two quasiparticles. In addition, the new formalism provides a concise derivation of the Pomeranchuk stability conditions and the expressions for the response functions in the degenerate limit.

๐Ÿ“œ SIMILAR VOLUMES

A theory of marginal fermi-liquids
A theory of marginal fermi-liquids
โœ A.E. Ruckenstein; C.M. Varma ๐Ÿ“‚ Article ๐Ÿ“… 1991 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 485 KB

We propose a microscopic justification for the recently proposed "marginal Fermi-liquid" (MFL) phenomenology of the high Te materials. In some models, and for sufficiently strong interactions, excitonic charge and spin modes between quasi-coherent one-particle states at the chemical potential and hi