2 papers
hep-lat2023
Reconstructing lattice QCD spectral functions with stochastic pole expansion and Nevanlinna analytic continuation
Li Huang, Shuang Liang
The reconstruction of spectral functions from Euclidean correlation functions is a well-known, yet ill-posed inverse problem in the fields of many-body and high-energy physics. In…
cond-mat.str-el2023
Stochastic pole expansion method
Li Huang, Shuang Liang
In this paper, we propose a new analytic continuation method to extract real frequency spectral functions from imaginary frequency Green's functions of quantum many-body systems. T…