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

页码：345 / 350

页数：6

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