TY - JOUR
T1 - Vanishing of the negative-sign problem of quantum Monte Carlo simulations in one-dimensional frustrated spin systems
AU - Nakamura, Tota
N1 - Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1998
Y1 - 1998
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevB.57.R3197
DO - 10.1103/PhysRevB.57.R3197
M3 - Article
AN - SCOPUS:0001491520
VL - 57
SP - R3197-R3200
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 6
ER -