We report multipronged progress on the stochastic averaging approach to numerical
analytic continuation of imaginary-time correlation functions computed by quantum Monte …

Simulations of finite temperature quantum systems provide imaginary frequency Green's
functions that correspond one to one to experimentally measurable real-frequency spectral …

Finite-temperature quantum field theories are formulated in terms of Green's functions and
self-energies on the Matsubara axis. In multiorbital systems, these quantities are related to …

This review paper describes the basic concept and technical details of sparse modeling and
its applications to quantum many-body problems. Sparse modeling refers to methodologies …

Analytic continuation is a central step in the simulation of finite-temperature field theories in
which numerically obtained Matsubara data are continued to the real frequency axis for a …

We introduce an exact framework to compute the positive frequency moments M (α)(q)=〈 ω
α〉 of different dynamic properties from imaginary-time quantum Monte Carlo data. As a …

Recently fabricated InSe monolayers exhibit remarkable characteristics that indicate the
potential of this material to host a number of many-body phenomena. In this work, we …

In a recent Letter [T. Dornheim, Phys. Rev. Lett. 121, 255001 (2018) PRLTAO 0031-9007
10.1103/PhysRevLett. 121.255001] we have presented ab initio results for the dynamic …

We present the Python package ana_cont for the analytic continuation of fermionic and
bosonic many-body Green's functions by means of either the Padé approximants or the …

A Fourier–Matsubara series expansion is derived for imaginary–time correlation functions
that constitutes the imaginary–time generalization of the infinite Matsubara series for equal …