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

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Abstract

We have solved the negative-sign problem in a general frustrated double-spin-chain system, namely the J0-J1-J2-J3 model. This is made possible by changing the representation basis from the conventional sz basis to a dimer basis that has the spin-reversal symmetry. The necessary condition for the problem to disappear in this new basis is J0+J1≤J3. Frustration is the origin only in the conventional sz basis. We demonstrate the efficiency of this new basis at the transition point between the gapless spin-fluid phase and the gapped dimer phase.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume57
Issue number6
Publication statusPublished - 1998 Feb 1
Externally publishedYes

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Dimers
dimers
simulation
frustration
transition points
Fluids
fluids
symmetry
Monte Carlo simulation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

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