Reviews of topical problems

Universal behavior of strongly correlated Fermi systems

 a,  b,  c
a B.P. Konstantinov St. Petersburg Institute of Nuclear Physics, Russian Academy of Sciences, Gatchina, Leningrad Region, Rusian Federation
b Ioffe Institute, ul. Polytekhnicheskaya 26, St. Petersburg, 194021, Russian Federation
c Komi Scientific Center, Ural Branch of the Russian Academy of Sciences, ul. Chernova 3a, Syktyvkar, Respublika Komi, 167982, Russian Federation

This review discusses the construction of а theory and the analysis of phenomena occurring in strongly correlated Fermi systems such as high-Тc superconductors, heavy-fermion metals, and quasi-two-dimensional Fermi systems. It is shown that the basic properties and the universal behavior of strongly correlated Fermi systems can be described in the framework of the Fermi-condensate quantum phase transition and the well-known Landau paradigm of quasiparticles and the order parameter. The concept of fermion condensation may be fruitful in studying neutron stars, finite Fermi systems, ultra-cold gases in traps, and quark plasma.

Fulltext is available at IOP
PACS: 71.27.+a, 74.20.Fg, 74.25.Jb (all)
DOI: 10.1070/PU2007v050n06ABEH006288
Citation: Shaginyan V R, Amusia M Ya, Popov K G "Universal behavior of strongly correlated Fermi systems" Phys. Usp. 50 563–593 (2007)
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Оригинал: Шагинян В Р, Амусья М Я, Попов К Г «Универсальное поведение сильнокоррелированных ферми-систем» УФН 177 585–618 (2007); DOI: 10.3367/UFNr.0177.200706a.0585

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