Thermal form-factor approach to dynamical correlation functions of integrable lattice models
Thermal form-factor approach to dynamical correlation functions of integrable lattice models
复制标题
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
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
J. Suzuki
中科院分区:
文献类型:
--
作者:
F. Göhmann;M. Karbach;A. Klümper;K. K. Kozlowski;J. Suzuki
We propose a method for calculating dynamical correlation functions at finite temperature in integrable lattice models of Yang–Baxter type. The method is based on an expansion of the correlation functions as a series over matrix elements of a time-dependent quantum transfer matrix rather than the Hamiltonian. In the infinite Trotter-number limit the matrix elements become time independent and turn into the thermal form factors studied previously in the context of static correlation functions. We make this explicit with the example of the XXZ model. We show how the form factors can be summed utilizing certain auxiliary functions solving finite sets of nonlinear integral equations. The case of the XX model is worked out in more detail leading to a novel form-factor series representation of the dynamical transverse two-point function.
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DOI:
10.1088/1742-5468/2014/04/p04012
发表时间:
2014
期刊:
Journal of Statistical Mechanics: Theory and Experiment
影响因子:
--
作者:
M. Dugave;F. Göhmann;K. K. Kozlowski
通讯作者:
K. K. Kozlowski
DOI:
--
发表时间:
2007
期刊:
J.Phys.A : Math.Theor. 40
影响因子:
--
作者:
Y.Maeda;C.Hotta;M.Oshikawa;堺和光
通讯作者:
堺和光
DOI:
--
发表时间:
1993
期刊:
影响因子:
--
作者:
A. Klümper
通讯作者:
A. Klümper
DOI:
10.1088/1742-5468/2013/07/p07010
发表时间:
2013
期刊:
Journal of Statistical Mechanics: Theory and Experiment
影响因子:
--
作者:
M. Dugave;F. Göhmann;K. K. Kozlowski
通讯作者:
K. K. Kozlowski
DOI:
10.1088/1751-8113/48/33/334001
发表时间:
2015
期刊:
Journal of Physics A: Mathematical and Theoretical
影响因子:
--
作者:
M. Dugave;F. Göhmann;K. K. Kozlowski;J. Suzuki
通讯作者:
J. Suzuki