Density-matrix renormalization-group study of coupled Luttinger liquids

S. Moukouri, E. Eidelstein

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


We report a two-step density-matrix renormalization-group computation of the equal-time single-particle Green's function, the density-density correlations, and the low-frequency spectral weight function of a spinless fermion model in an anisotropic two-dimensional lattice at half filling. We find that at weak couplings the density-density correlations have the universal decay of a Fermi liquid; the spectral weight function displays a sharp quasiparticle peak. But in the vicinity of a quantum critical point, these correlations strongly deviate from a Fermi-liquid prediction and a pseudogap opens in the spectral weight function.

Original languageEnglish
Article number165132
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number16
StatePublished - 29 Oct 2010
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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