Transition rates via Bethe ansatz for the spin-1/2 planar XXZ antiferromagnet

被引：25

作者：

Biegel, D ^{[1
]}

Karbach, M

Müller, G

机构：

[1] Berg Univ Wuppertal, Fachbereich Phys, D-42097 Wuppertal, Germany

[2] Univ Rhode Isl, Dept Phys, Kingston, RI 02881 USA

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2003年 / 36卷 / 20期

关键词：

D O I：

10.1088/0305-4470/36/20/301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A novel determinantal representation for matrix elements of local spin operators between Bethe wavefunctions of the one-dimensional s = 1/2 XXZ model is used to calculate transition rates for dynamic spin structure factors in the planar regime. In a first application, high-precision numerical data are presented for lineshapes and band edge singularities of the in-plane (xx) two-spinon dynamic spin structure factor.

引用

页码：5361 / 5368

页数：8

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