Critical Exponents of the Quantum Phase Transition in a Planar Antiferromagnet

Matthias Troyer, Masatoshi Imada, Kazuo Ueda

Research output: Contribution to journalArticle

65 Citations (Scopus)

Abstract

We have performed a large scale quantum Monte Carlo study of the quantum phase transition in a planar spin-1/2 Heisenberg antiferromagnet with CaV4O9 structure. We obtain a dynamical exponent z = 1.018 ± 0.02, consistent with Lorentz invariance. The critical exponents β, ν and η agree within our errors with the classical 3D O(3) exponents, expected from mapping to the nonlinear sigma model.

Original languageEnglish
Pages (from-to)2957-2960
Number of pages4
JournalJournal of the Physical Society of Japan
Volume66
Issue number10
DOIs
Publication statusPublished - 1997 Jan 1
Externally publishedYes

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exponents
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Keywords

  • Berry phase
  • Critical exponent
  • Non-linear sigma model
  • Quantum critical
  • Quantum disordered
  • Quantum Heisenberg antiferromagnet
  • Quantum Monte Carlo
  • Quantum phase transition
  • Renormalized classical

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Critical Exponents of the Quantum Phase Transition in a Planar Antiferromagnet. / Troyer, Matthias; Imada, Masatoshi; Ueda, Kazuo.

In: Journal of the Physical Society of Japan, Vol. 66, No. 10, 01.01.1997, p. 2957-2960.

Research output: Contribution to journalArticle

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