RESONATING VALENCE-BOND THEORY OF COUPLED HEISENBERG-CHAINS

被引：393

作者：

WHITE, SR ^{[1
]}

NOACK, RM ^{[1
]}

SCALAPINO, DJ ^{[1
]}

机构：

[1] UNIV CALIF SANTA BARBARA,DEPT PHYS,SANTA BARBARA,CA 93106

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 06期

关键词：

D O I：

10.1103/PhysRevLett.73.886

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using numerical results from a density matrix renormalization group study as a guide, we develop a resonating valence bond (RVB) theory for coupled Heisenberg chains. We argue that simple topological effects mandate a short-range RVB description of systems with an even number of chains n(c), with a spin gap, short-range correlations, and confinement of topological spin defects. Odd-n(c) systems have long-range RVB ground states, no gap, and power-law correlations.

引用

页码：886 / 889

页数：4

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