Density Matrix Renormalization Group Algorithm
DMRG++ is a free and open source implementation of the
DMRG algorithm. It emphasizes generic programming using C++
templates, friendly user-interface, and as few software
dependencies as possible. DMRG++ tries to make writing new models
and geometries easy, fast and bug-free by using a generic DMRG
engine. This is available here.
SpinGlassSW
SpinGlassSW is a free and open source spin-wave code that focuses on strongly disordered magnets, and is co-authored by Tom Berlijn at ORNL.
FreeFermions
A code to compute properties of tight binding models, when there's only one-particle interactions. This is at github.com.
SpinPhononFermion
The SPF project is designed for the
computer simulation of generic fermionic systems coupled to
classical fields. These models have become very important in the
description of many physical systems of much current interest in
condensed matter theory, e.g. manganites, diluted magnetic
semiconductors and high temperature superconductors. In fact,
spin-fermion models comprise a large set of models, including not
only spin degrees of freedom, but orbital as well as lattice
distortions or phonons, where the applicability to a growing number
of materials has been found to be effective.
PsimagLite
PsimagLite is a fork of T.S.'s
Psimag software that includes only a subset of functionality found
in the full Psimag.