IMPROVEMENT IN THE NEGATIVE-SIGN PROBLEM IN NUMERICAL-CALCULATIONS OF A QUANTUM SPIN SYSTEM

被引：16

作者：

MUNEHISA, T

MUNEHISA, Y

机构：

[1] Faculty of Engineering, Yamanashi University, Kofu, Yamanashi

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.49.3347

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We propose an approach to the numerical study of quantum spin systems. Our method is based on the fact that one can use any set of states for the path integral as long as it is a complete set. We apply our method to one-dimensional quantum spin systems with next-to-nearest-neighbor interactions. We find significant improvement in the negative-sign problem.

引用

页码：3347 / 3351

页数：5

共 8 条

[1] THE RESONATING VALENCE BOND STATE IN LA2CUO4 AND SUPERCONDUCTIVITY [J].

ANDERSON, PW .

SCIENCE, 1987, 235 (4793) :1196-1198

[2] CONTINUUM DYNAMICS OF THE 1-D HEISENBERG ANTI-FERROMAGNET - IDENTIFICATION WITH THE O(3) NON-LINEAR SIGMA-MODEL [J].

HALDANE, FDM .

PHYSICS LETTERS A, 1983, 93 (09) :464-468

[3] NON-LINEAR FIELD-THEORY OF LARGE-SPIN HEISENBERG ANTI-FERROMAGNETS - SEMI-CLASSICALLY QUANTIZED SOLITONS OF THE ONE-DIMENSIONAL EASY-AXIS NEEL STATE [J].

HALDANE, FDM .

PHYSICAL REVIEW LETTERS, 1983, 50 (15) :1153-1156

[4]

MAKIVIC M, 1992, COMPUTATIONAL APPROA, P129

[5] THE SPIN-1/2 HEISENBERG-ANTIFERROMAGNET ON A SQUARE LATTICE AND ITS APPLICATION TO THE CUPROUS OXIDES [J].

MANOUSAKIS, E .

REVIEWS OF MODERN PHYSICS, 1991, 63 (01) :1-62

[6]

Marcu M., 1987, Quantum Monte Carlo Methods in Equilibrium and Nonequilibrium Systems. Proceedings of the Ninth Taniguchi International Symposium, P64

[7]

MIYASHITA S, 1990, QUANTUM SIMULATION, P238

[8] QUANTUM STATISTICAL MONTE-CARLO METHODS AND APPLICATIONS TO SPIN SYSTEMS [J].

SUZUKI, M .

JOURNAL OF STATISTICAL PHYSICS, 1986, 43 (5-6) :883-909

← 1 →