Vanishing of the negative-sign problem of quantum Monte Carlo simulations in one-dimensional frustrated spin systems

研究成果: Article査読

33 被引用数 (Scopus)

抄録

We have solved the negative-sign problem in a general frustrated double-spin-chain system, namely the (Formula presented)-(Formula presented)-(Formula presented)-(Formula presented) model. This is made possible by changing the representation basis from the conventional (Formula presented) basis to a dimer basis that has the spin-reversal symmetry. The necessary condition for the problem to disappear in this new basis is (Formula presented). Frustration is the origin only in the conventional (Formula presented) basis. We demonstrate the efficiency of this new basis at the transition point between the gapless spin-fluid phase and the gapped dimer phase.

本文言語English
ページ(範囲)R3197-R3200
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
57
6
DOI
出版ステータスPublished - 1998
外部発表はい

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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