Please cite the following papers.

ACFlow

[1] Li Huang, ACFlow: An open source toolkit for analytical continuation of quantum Monte Carlo data, Comput. Phys. Commun. 292, 108863 (2023).

[2] Li Huang, ACFlow 2.0: An open source toolkit for analytical continuation of quantum Monte Carlo data, under review (2025).

Stochastic Pole Expansion

[3] Li Huang, Shuang Liang, Stochastic pole expansion method for analytic continuation of the Green's function, Phys. Rev. B 108, 235143 (2023).

[4] Li Huang, Shuang Liang, Reconstructing lattice QCD spectral functions with stochastic pole expansion and Nevanlinna analytic continuation, Phys. Rev. D 109, 054508 (2024).

Rational Function Approximation

[5] Li Huang, Changming Yue, Barycentric rational function approximation made simple: A fast analytic continuation method for Matsubara Green's functions, Phys. Rev. B 111, 125139 (2025).