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
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
收藏
页码:972 / 986
页数:15
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