Acflow: An Open Source Toolkit for Analytical Continuation of Quantum Monte Carlo Data
Acflow: An Open Source Toolkit for Analytical Continuation of Quantum Monte Carlo Data
The purpose of analytical continuation is to establish a real frequency spectral representation of single-particle or two-particle correlation function (such as Green's function, self-energy function, spin and charge susceptibilities) from noisy data generated in finite temperature quantum Monte Carlo simulations. It requires numerical solutions of a family of Fredholm integral …