Real-space renormalization group study of the Hubbard model on anon-bipartite lattice

J. X. Wang, Sabre Kais, R. D. Levine

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We present the real-space block renormalization group equations for fermion systems described by a Hubbard Hamiltonian on a triangular lattice with hexagonal blocks. The conditions that keep the equations from proliferation of the couplings are derived. Computational results are presented including the occurrence of a first-order metal-insulator transition at the critical value of U/t ≈ 12.5.

Original languageEnglish
Pages (from-to)4-16
Number of pages13
JournalInternational Journal of Molecular Sciences
Volume3
Issue number1
Publication statusPublished - 1 Jan 2002
Externally publishedYes

Fingerprint

Hamiltonians
Hubbard model
Metal insulator transition
Fermions
Metals
fermions
insulators
occurrences
metals

Keywords

  • Metal-insulator transition
  • Quantum dots
  • Renormalization group method
  • Triangular lattice

ASJC Scopus subject areas

  • Chemistry(all)
  • Molecular Biology

Cite this

Real-space renormalization group study of the Hubbard model on anon-bipartite lattice. / Wang, J. X.; Kais, Sabre; Levine, R. D.

In: International Journal of Molecular Sciences, Vol. 3, No. 1, 01.01.2002, p. 4-16.

Research output: Contribution to journalArticle

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