New integrable version of the degenerate supersymmetric t-J model

被引：1
|
作者：
Alcaraz, FC [1 ]
Bariev, RZ
机构：
[1] Univ Fed Sao Carlos, Dept Fis, BR-13565905 Sao Carlos, SP, Brazil
[2] Russian Acad Sci, Kazan Physicotech Inst, Kazan 420029, Russia
来源：
PHYSICS LETTERS A | 1999年 / 261卷 / 5-6期
关键词：
D O I：
10.1016/S0375-9601(99)00640-4
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A new integrable version of the degenerate supersymmetric t-J model is proposed. In this formulation, instead of restricting the single occupancy of electrons at each lattice site we may have up to two electrons at each site. As a requirement of exact integrability the hopping interaction turns out to be correlated with the density of electrons in the neighboring sites, The exact solution of the model is obtained through the coordinate Bethe ansatz. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
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收藏
页码：365 / 370
页数：6
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