Thermal form factor series for correlation functions of the Heisenberg chain

海森堡链相关函数的热形状因数系列

• 批准号: 355702131
• 负责人: Professor Dr. Frank Göhmann
• 金额: --
• 依托单位: Department of Physics
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/355702131?language=en
• 关键词: Thermal; form; factor; series; correlation

The main goal of the proposed research project is to develop a method for the exact calculation of dynamical correlation functions of the Heisenberg-Ising chain at finite temperatures. Such correlation functions are, for instance, measured in neutron scattering experiments or in electron spin resonance experiments, but so far are known at most approximately. Exact results for the long-time large-distance asymptotics of correlation functions, in particular, would help with the interpretation of experimental data but also with the calibration of numerical and analytical approximations on the theory side.

拟议研究项目的主要目标是开发一种方法，用于精确计算有限温度下海森堡-伊辛链的动力学相关函数。这种相关函数，例如，在中子散射实验或电子自旋共振实验中测量，但迄今为止最多是近似已知的。特别是相关函数的长时间大距离渐近性的精确结果将有助于解释实验数据，也有助于理论方面的数值和分析近似的校准。

项目成果

Thermal form-factor approach to dynamical correlation functions of integrable lattice models

可积晶格模型动态相关函数的热形状因子方法

• DOI: 10.1088/1742-5468/aa9678
• 发表时间: 2017
• 期刊: Journal of Statistical Mechanics: Theory and Experiment
• 作者: F. Göhmann;M. Karbach;A. Klümper;K. K. Kozlowski;J. Suzuki
• 通讯作者: J. Suzuki