From Fermi Liquid to Non-Fermi Liquid Physics — Influence of Non-Local Fluctuations in Low-Dimensional Fermion Systems

Thomas Pruschke, Thomas Maier and Mark Jarrell
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Thomas Pruschke: University of Augsburg, Center for Electronic Correlations and Magnetism Theoretical Physics III, Institute for Physics
Thomas Maier: University of Cincinnati, Department of Physics
Mark Jarrell: University of Cincinnati, Department of Physics

A chapter in High Performance Computing in Science and Engineering, Munich 2002, 2003, pp 327-337 from Springer

Abstract: Abstract We discuss single particle dynamics of the 2D Hubbard model in the intermediate coupling regime calculated with the dynamical cluster approximation, which is a non-perturbative approach. We find a crossover from a normal Fermi liquid with a Fermi surface satisfiying Luttinger’s theorem at large doping to a non-Fermi liquid for small doping with clear violation of Luttinger’s theorem.

Keywords: Fermi Surface; Fermi Energy; Fermi Liquid; Quantum Monte Carlo; Fermi Liquid Behavior (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-55526-8_26

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DOI: 10.1007/978-3-642-55526-8_26

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