tagtog12000

EDHD

Essentially distinct Hugenholtz diagrams for free energy

GrandPotential

Grand potential (Free energy) in finite temperature many-body perturbation theory

SpanTree

Generating all spanning trees of undirected graph

Grand_Potential_Serie

HTS1DHubbard

High temperature series expansion of the one dimensional Hubbard model via many - body perturbation theory, where in this article we take the maximum order expansion in terms of \ the potential U to be six

HTSEofHeisenbergXXZ

High temperature series expansion of the XXZ Heisenberg spin chain via many - body perturbation theory, where in this article we take the maximum order expansion in terms of \ the potential \Delta up to order six

DividedDifferenceMBPT

Print the analytic formula of the grand potential series

HeisenbergResults

tagtog12000

Config files for my GitHub profile.