The normal state of high T sub c superconductors: A new quantum liquid

Conference · Sat Oct 06 04:00:00 EDT 1990 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:7182660

Anderson, P W; Ren, Y ^[1]

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1. Joseph Henry Laboratories of Physics, Jadwin Hall, Princeton University, Princeton, New Jersey 08544 (United States)

A renormalization group analysis of interacting Fermion systems shows that there are two fundamentally different fixed points, Landau Fermi liquid theory and what has been called Luttinger Liquid Theory'' by Haldane, a type of state in which fluctuations of different quantum numbers---e.g., charge and spin---acquire distinct spectra, and Fermi surface correlations have unusual exponents. The luttinger liquids comprise most interacting 1-dimensional systems, and some higher-dimensional systems in which, as in the Hubbard model, the band spectrum is bounded above. All higher-dimensional systems with true Mott-Hubbard gaps and an upper Hubbard band, including most 2d Hubbard models, are Luttinger liquids. We summarize the experimental evidence in favor of the 2d Hubbard model for high {ital T}{sub {ital c}} superconductors and the constraints pointing towards its non-Fermi liquid nature. We describe progress towards explaining normal state and superconducting properties and elucidating the high {ital T}{sub {ital c}} mechanism.

• OSTI ID: 7182660
• Report Number(s): CONF-891248--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 213:1
• Country of Publication: United States
• Language: English

Related Subjects

665411* -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CORRELATION FUNCTIONS
ENERGY LEVELS
FERMI LEVEL
FUNCTIONS
HIGH-TC SUPERCONDUCTORS
ONE-DIMENSIONAL CALCULATIONS
SUPERCONDUCTORS