The ALF (Algorithms for Lattice Fermions) project release 2.0. Documentation for the auxiliaryfield quantum Monte Carlo code
Abstract
The Algorithms for Lattice Fermions package provides a general code for the finitetemperature and projective auxiliaryfield quantum Monte Carlo algorithm. The code is engineered to be able to simulate any model that can be written in terms of sums of singlebody operators, of squares of singlebody operators and singlebody operators coupled to a bosonic field with given dynamics. The package includes five predefined model classes: SU(N) Kondo, SU(N) Hubbard, SU(N) tV and SU(N) models with long range Coulomb repulsion on honeycomb, square and Nleg lattices, as well as $Z_2$ unconstrained lattice gauge theories coupled to fermionic and $Z_2$ matter. An implementation of the stochastic Maximum Entropy method is also provided. One can download the code from our Git instance at https://git.physik.uniwuerzburg.de/ALF/ALF//tree/ALF2.0 and sign in to file issues.
 Publication:

arXiv eprints
 Pub Date:
 December 2020
 arXiv:
 arXiv:2012.11914
 Bibcode:
 2020arXiv201211914A
 Keywords:

 Condensed Matter  Strongly Correlated Electrons;
 High Energy Physics  Lattice;
 Physics  Computational Physics;
 Quantum Physics
 EPrint:
 121 pages, 11 figures. v3: quick tutorial section added, typos corrected, etc. Submission to SciPost. arXiv admin note: text overlap with arXiv:1704.00131