Tutorials

We provide three tutorials, with solved exercises:

An introductory one using a fictitious Green’s functions for which the spectrum is known. The aim of this first tutorial is to introduce the main features of \(\Omega MaxEnt\), in particular its diagnostic tools. The exercise is on the continuation of a matrix-valued Green’s function.

Then, there are two tutorials on the analytic continuation of dynamical mean-field theory (DMFT) results:

First, a comparison between the result of analytic continuation of a Matsubara frequency self-energy computed using a continuous-time hybridization expansion (CTHYB) impurity solver and the real-frequency self-energy obtained directly with a numerical renormalization group (NRG) impurity solver.

And second, the analytic continuation of a self-energy on the example of the DMFT and density functional theory solution for the material \(Sr_2RuO_4\).