Transition Rates via Bethe Ansatz for the Spin-1/2 Planar XXZ Antiferromagnet

Transition Rates via Bethe Ansatz for the Spin-1/2 Planar XXZ Antiferromagnet
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来自 Bethe Ansatz 的 Spin-1/2 平面 XXZ 反铁磁体的跃迁率

DOI:
10.1088/0305-4470/36/20/301
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发表时间:
2003
期刊:
Journal of Physics A
影响因子:
--
通讯作者:
G. Mueller
G. Mueller
中科院分区:
--
文献类型:
--
作者:
Daniel Biegel;M. Karbach;G. Mueller

文献摘要

被引文献

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本文用一维s = 1/2XXZ模型Bethe波函数间局域自旋算符矩阵元的一种新的行列式表示,计算了平面区域中动态自旋结构因子的跃迁率.在第一个应用程序中,高精度的数值数据的线型和带边奇异的面内(XX)两个自旋动态自旋结构因子。
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.