ASYMPTOTIC BETHE-ANSATZ SOLUTION OF MULTICOMPONENT QUANTUM-SYSTEMS WITH 1/R2 LONG-RANGE INTERACTION

被引：101

作者：

KAWAKAMI, N ^{[1
]}

机构：

[1] SWISS FED INST TECHNOL,CH-8093 ZURICH,SWITZERLAND

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.46.1005

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Asymptotic Bethe-ansatz solutions are obtained for one-dimensional quantum systems with a 1/r2 long-range interaction by generalizing Sutherland's method to multicomponent quantum systems. We obtain the solutions to the supersymmetric t-J model of Kuramoto and Yokoyama, the SU(nu) Haldane-Shastry model, and the multicomponent t-J model. The excitation spectrum as well as bulk quantities are computed analytically. Conformal properties of low-energy excitations are discussed in connection with Luttinger liquid theory.

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页码：1005 / 1014

页数：10

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