Spectral density analysis of time correlation functions in lattice QCD using the maximum entropy method
Spectral density analysis of time correlation functions in lattice QCD using the maximum entropy method
复制标题
使用最大熵法对晶格 QCD 中的时间相关函数进行谱密度分析
DOI:
10.1103/physrevd.65.094512
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发表时间:
2002
期刊:
影响因子:
--
通讯作者:
H. Fiebig
中科院分区:
文献类型:
--
作者:
H. Fiebig
We study various aspects of extracting spectral information from time correlation functions of lattice QCD by means of Bayesian inference with an entropic prior, the maximum entropy method (MEM). Correlator functions of a heavy-light meson-meson system serve as a repository for lattice data with diverse statistical quality. Attention is given to spectral mass density functions, inferred from the data, and their dependence on the parameters of the MEM. We propose to employ simulated annealing, or cooling, to solve the Bayesian inference problem, and discuss practical issues of the approach.