Crossover of Spin Correlations in One-Dimensional Hubbard Model Studied by Quantum Monte Carlo Method

Youichirou Iino, Masatoshi Imada

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We investigate temperature dependence of spin correlations in the one-dimensional Hubbard model at or close to half filling by the quantum Monte Carlo method. The numerical data are analyzed by introducing a crossover generated from an interplay of the intrinsic correlation length and the thermal correlation length. It provides a unified picture of the spin correlation of the metallic phase near the Mott insulator at finite temperatures. Our results show that the crossover, not taken account by the conventional renormalization group and the conformai field theory, becomes more and more important to understand the spin correlation near the Mott transition point.

Original languageEnglish
Pages (from-to)4392-4401
Number of pages10
Journaljournal of the physical society of japan
Volume64
Issue number11
DOIs
Publication statusPublished - 1995 Nov
Externally publishedYes

Keywords

  • Hubbard model
  • Mott transition
  • crossover
  • quantum Monte Carlo method
  • spin correlation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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