Variational Monte-Carlo Studies of Hubbard Model. I

Hisatoshi Yokoyama; Hiroyuki Shiba

doi:10.1143/JPSJ.56.1490

Variational Monte-Carlo Studies of Hubbard Model. I

Hisatoshi Yokoyama, Hiroyuki Shiba

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287 Citations (Scopus)

Abstract

A variational Monte-Carlo method, which is a combination of the variational theory and the Monte-Carlo technique is proposed to study the Hubbard model with the Gutzwiller's wave function. An application is made to one-, two-, and three-dimensional models having sites up to 216 (6×6×6) and arbitrary values of U/t (on-site repulsion U and hopping integral t). Contrary to resorting to the Gutzwiller approximation, it provides a virtually exact way to carry out the Gutzwiller-type variational theory and opens up a possibility of further development.

Original language	English
Pages (from-to)	1490-1506
Number of pages	17
Journal	journal of the physical society of japan
Volume	56
Issue number	4
DOIs	https://doi.org/10.1143/JPSJ.56.1490
Publication status	Published - 1987 Jan 1
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1143/JPSJ.56.1490

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Variational Monte-Carlo Studies of Hubbard Model. I

Abstract

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