Deconfinement transition and Luttinger to Fermi Liquid crossover in quasi one-dimensional systems

S. Biermann (1, 2) , A. Georges (1, 2) , A. Lichtenstein , T. Giamarchi (1, 2)

1 LPS - Laboratoire de Physique des Solides
2 LPTENS - Laboratoire de Physique Théorique de l'ENS [École Normale Supérieure]

We investigate a system of one dimensional Hubbard chains of interacting fermions coupled by inter-chain 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 inter-chain optical conductivity are calculated. Possible applications to organic conductors are discussed.

Domaines: Autre [cond-mat.other]

S. Biermann, A. Georges, A. Lichtenstein, T. Giamarchi. Deconfinement transition and Luttinger to Fermi Liquid crossover in quasi one-dimensional systems. Physical Review Letters, 2001, pp.276405. ⟨hal-00110607⟩