MONTE-CARLO CALCULATIONS OF THE CORRELATION-FUNCTIONS FOR HEISENBERG SPIN CHAINS AT T=0

被引：101

作者：

LIANG, S ^{[1
]}

机构：

[1] UNIV ILLINOIS,MAT RES LAB,URBANA,IL 61801

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 64卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.64.1597

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We compute the ground-state spin-spin correlation function for the one-dimensional antiferromagnetic Heisenberg model of spin 1/2, 1, and 3/2. The spin-1 chain has a disordered ground state with a correlation length of 6.2 lattice spacings whereas the spin-1/2 and the spin-3/2 chains both have (ln(r))decaying correlation functions. The logarithmic corrections are different for the spin-1/2 and the spin-3/2 chains. Finite-size scaling is used to analyze the data for chains of up to 128 spins. © 1990 The American Physical Society.

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页码：1597 / 1600

页数：4

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