Unveiling order behind complexity: Coexistence of ferromagnetism and Bose-Einstein condensation

被引：38

作者：

Batista, CD ^{[1
]}

Ortiz, G ^{[1
]}

Gubernatis, JE ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA

来源：

PHYSICAL REVIEW B | 2002年 / 65卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.65.180402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present an algebraic framework for identifying the order parameter and the possible phases of quantum systems, which is based on identifying the local dimension N of the quantum operators and using the SU(N) group representing the generators of generalized spin-particle mappings. We illustrate this for N=3 by presenting for any spatial dimension the exact solution of the bilinear-biquadratic S=1 quantum Heisenberg model at a high symmetry point. Through this solution we rigorously show that itinerant ferromagnetism and Bose-Einstein condensation may coexist.

引用

页码：1 / 4

页数：4

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