Staggered Long-Range Order for Diluted Quantum Spin Models

被引：0

作者：

Kotecky, Roman ^{[1
,2
]}

Lees, Benjamin ^{[3
]}

机构：

[1] Univ Warwick, Math Inst, Coventry CV4 7AL, W Midlands, England

[2] Charles Univ Prague, CTS, Prague, Czech Republic

[3] Tech Univ Darmstadt, Fachbereich Math, Darmstadt, Germany

来源：

JOURNAL OF STATISTICAL PHYSICS | 2019年 / 175卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

Diluted quantum XY-model; Staggered long-range order; Chessboard estimates; FALICOV-KIMBALL MODEL; PHASE-TRANSITIONS; REFLECTION POSITIVITY; SYSTEMS;

D O I：

10.1007/s10955-019-02263-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study an annealed site diluted quantum XY model with spin Smml:mstyle displaystyleN. We find regions of the parameter space where, in spite of being a priori favourable for a densely occupied state, phases with staggered occupancy occur at low temperatures.

引用

页码：972 / 986

页数：15

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