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Variational Solution of the One-Dimensional T-J Model

Gulacsi, Miklos


A new variational scheme based on a modified Bethe-Peierls method is used to study the ground state properties of the one-dimensional t-J model. Expectation values are evaluated by cutting out a four-site cluster from a correlated Fermi sea, the ground state of which is described by a variational trial wave function. We study a generalized Gutzwiller state where nearest-neighbour hole-hole correlations are controlled variationally. From the electron concentration dependence of the ground state...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
Source: Philosophical Magazine Letters
DOI: 10.1080/09500830512331325073


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