Gap generation in the XXZ model in a transverse magnetic field -: art. no. 172409

被引：77

作者：

Dmitriev, DV

Krivnov, VY

Ovchinnikov, AA

机构：

[1] Russian Acad Sci, Joint Inst Chem Phys, Moscow 117977, Russia

[2] Max Planck Inst Phys Komplexer Syst, D-01187 Dresden, Germany

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.65.172409

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ground-state phase diagram of the one-dimensional XXZ model in a transverse magnetic field is obtained. It consists of the gapped phases with different types of long-range order (LRO) and critical lines at which the gap and the LRO vanish. Using scaling estimations and a mean-field approach as well as numerical results we found critical indices of the gap and the LRO in the vicinity of critical lines.

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页数：4

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