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Manuscript Title: HUBCOM: a program for Monte Carlo simulations on generalized Hubbard models.
Authors: S.J. Sciutto
Program title: HUBCOM
Catalogue identifier: ABTJ_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 62(1991)90
Programming language: Fortran.
Computer: IBM 3090/VF.
Operating system: MVS/SP.
RAM: 200K words
Word size: 32
Keywords: Statistical physics, Thermodynamics, Monte carlo, Fermionic systems, Determinantal method, Condensed matter, Hubbard model.
Classification: 23.

Revision history:
Type Tit le Reference
correction 000A CORRECTION 01/07/91 See below

Nature of problem:
We present here a program for performing Monte Carlo (MC) simulations in discrete fermionic systems. We use a special version of the so-called determinantal method. The algorithm is based in the standard Metropolis method, but makes use of a non-uniform probability distribution for the selection of the transition-candidate states. Detailed balance is perserved by suitably modifying the Metropolis acceptance-rejection test. The method was originally developed and used in a one dimensional spinless fermion model. We apply it to the case of a two dimensional multi-band Hubbard model. The program code is self-contained and optimized for use in vectorial computers.

Running time:
84 min 34 sec for the test run.

CORRECTION SUMMARY
Manuscript Title: Unpublished correction to HUBCOM: a program for Monte Carlo simulations on generalized Hubbard models.
Authors: S.J. Sciutto
Program title: 000A CORRECTION 01/07/91
Catalogue identifier: ABTJ_v1_0
Distribution format: gz
Classification: 23.