On the spectrum of the non-Hermitian phase-difference model

被引：15
作者：
Bogoliubov, NM [1 ]
Nassar, T [1 ]
机构：
[1] UNIV HELSINKI, HELSINKI INST PHYS, FIN-00014 HELSINKI, FINLAND
来源：
PHYSICS LETTERS A | 1997年 / 234卷 / 05期
基金：
芬兰科学院;
关键词：
algebraic Bethe ansatz; phase operators;
D O I：
10.1016/S0375-9601(97)00561-6
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A modified version of the phase-difference model is introduced and diagonalized by means of the algebraic Bethe ansatz. The spectrum is determined for both small and large values of the coupling constant, and the low-lying excitations are shown to exhibit a conformal profile, Applications of the model to quantum optics and growth problems are briefly discussed. (C) 1997 Published by Elsevier Science B.V.
引用
收藏
页码：345 / 350
页数：6
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