Properties of the one-dimensional Hubbard model: Cellular dynamical mean-field description

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The one-dimensional half-filled Hubbard model is considered at zero temperature within the cellular dynamical mean-field theory (CDMFT). By the computation of the spectral gap and the energy density with various cluster and bath sizes we examine the accuracy of the CDMFT in a systematic way, which proves the accurate description of the one-dimensional systems by the CDMFT with small clusters. We also calculate the spectral weights in a full range of the momentum for various interaction strengths. The results do not only account for the spin-charge separation, but they also reproduce all the features of the Bethe ansatz dispersions, implying that the CDMFT provides an excellent description of the spectral properties of low-dimensional interacting systems.

Original languageEnglish
Article number485602
JournalJournal of Physics Condensed Matter
Volume21
Issue number48
DOIs
StatePublished - 2009

Fingerprint

Dive into the research topics of 'Properties of the one-dimensional Hubbard model: Cellular dynamical mean-field description'. Together they form a unique fingerprint.

Cite this