Variational wave functions and ground-state properties in the one-dimensional t-J model

Hisatoshi Yokoyama, Masao Ogata

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Ground-state properties of the one-dimensional t-J model are studied by using exact diagonalization of small systems and compared with those found with Gutzwiller-Jastrow FOR type variational functions. Near the supersymmetric case (J/t=2), the Gutzwiller wave function is an extremely good trial function for all electron densities. It reproduces momentum distribution and correlation functions of the exact ground state except for critical behaviors. For J/t<2 (>2), the ground-state properties are well described by Jastrow functions with repulsive (attractive) intersite correlations.

Original languageEnglish
Pages (from-to)3610-3613
Number of pages4
JournalPhysical Review Letters
Volume67
Issue number25
DOIs
Publication statusPublished - 1991 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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