Deconfinement transition and Luttinger to Fermi liquid crossover in quasi-one-dimensional systems.
We investigate a system of one-dimensional Hubbard chains of interacting fermions coupled by interchain hopping. Using a generalization of the dynamical mean-field theory we study the deconfinement transition from a Mott insulator to a metal and the crossover between Luttinger and Fermi liquid phases. One-particle properties, local spin response, and interchain optical conductivity are calculated. Possible applications to organic conductors are discussed.
Biermann
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Laboratoire de Physique des Solides, CNRS-UMR 8502, UPS Bâtiment 510, 91405 Orsay, France.
Georges
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Lichtenstein
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Giamarchi
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