New order parameter and numerical techniques for the ground-state Mott transition in infinite dimensions

Yoshihiro Nishiyama, Masuo Suzuki

Research output: Contribution to journalArticle

Abstract

The ground-state Mott transition of the Hubbard model on the Bethe lattice with an infinite coordination number is investigated. The system is mapped to a numerically tractable finite model according to the proposal by Si et al. The intersection points of curves of our new order parameter with a varying mapping precision are found to yield a systematic estimate of the Mott transition point. The meaning of the order parameter is investigated. The White method is applied in order to examine very large mapped systems approximately. Transition properties are discussed in detail.

Original languageEnglish
Pages (from-to)133-145
Number of pages13
JournalPhysica B: Condensed Matter
Volume229
Issue number2
DOIs
Publication statusPublished - Jan 1997
Externally publishedYes

Keywords

  • Exact diagonalization
  • Infinite-dimensional electron system
  • Mott transition
  • Numerical real-space renormalization

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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