ABUNDANCE OF TRANSLATION INVARIANT PURE STATES ON QUANTUM SPIN CHAINS

被引：40

作者：

FANNES, M

NACHTERGAELE, B

WERNER, RF

机构：

[1] PRINCETON UNIV,DEPT PHYS,PRINCETON,NJ 08544

[2] UNIV OSNABRUCK,FACHBEREICH PHYS,W-4500 OSNABRUCK,GERMANY

来源：

LETTERS IN MATHEMATICAL PHYSICS | 1992年 / 25卷 / 03期

关键词：

D O I：

10.1007/BF00406552

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We construct a set of translation invariant pure states of a quantum spin chain, which is w*-dense in the set of all translation invariant states of the chain. Each of the approximating states has exponential decay of correlations, and is the unique ground state of a finite range Hamiltonian with a spectral gap above the ground state energy.

引用

页码：249 / 258

页数：10

共 9 条

[1]

ACCARDI L, 1983, P ROY IRISH ACAD A, V83, P251

[2] VALENCE BOND GROUND-STATES IN ISOTROPIC QUANTUM ANTIFERROMAGNETS [J].