Quasi-one-dimensional organic conductors: dimensional crossover and some puzzles

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dc.creatorBiermann, S.
dc.creatorGeorges, A.
dc.creatorGiamarchi, T.
dc.creatorLichtenstein, A.
dc.date2002-01-29
dc.date.accessioned2026-07-07T02:44:17Z
dc.date.available2026-07-07T02:44:17Z
dc.descriptionWe review some properties of quasi-one-dimensional organic conductors, such as the Bechgaard salts, with an emphasis on aspects related to the crossovers between a Mott insulating state to a metallic state, and crossovers between different metallic behaviors. We discuss why a theoretical description of these issues is a particularly challenging problem, and describe a recent non-perturbative approach designed to deal with systems of coupled chains. This method, dubbed "chain-DMFT", is a generalization of dynamical mean field theory that treats both, one-dimensional and higher dimensional physics, in a unified manner. We present numerical results for a system of coupled Hubbard chains. Chain-DMFT indeed captures the metal-insulator transition and the dimensional crossover from a high temperature Luttinger liquid to a low temperature Fermi liquid phase, and allows to access the properties of these phases. Based on these results perspectives for a theoretical understanding of the physics of the Bechgaard salts are discussed.
dc.identifierhttps://arxiv.org/abs/cond-mat/0201542
dc.identifierhttp://arxiv.org/abs/cond-mat/0201542
dc.identifierProceedings of the NATO ASI "Field Theory of Strongly Correlated Fermions and Bosons in Low - Dimensional Disordered Systems", Windsor, August, 2001
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18857
dc.subjectStrongly Correlated Electrons
dc.titleQuasi-one-dimensional organic conductors: dimensional crossover and some puzzles
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