Wang-Landau Algorithm for Continuous Models and Joint Density of States

Chenggang Zhou, T. C. Schulthess, Stefan Torbrügge, and D. P. Landau
Phys. Rev. Lett. 96, 120201 – Published 28 March 2006

Abstract

We present a modified Wang-Landau algorithm for models with continuous degrees of freedom. We demonstrate this algorithm with the calculation of the joint density of states of ferromagnet Heisenberg models and a model polymer chain. The joint density of states contains more information than the density of states of a single variable-energy, but is also much more time consuming to calculate. We present strategies to significantly speed up this calculation for large systems over a large range of energy and order parameter.

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  • Received 11 June 2005

DOI:https://doi.org/10.1103/PhysRevLett.96.120201

©2006 American Physical Society

Authors & Affiliations

Chenggang Zhou1,2, T. C. Schulthess1, Stefan Torbrügge3, and D. P. Landau2

  • 1Center for Nanophase Materials Sciences and Computer Science and Mathematics Division, Oak Ridge National Laboratory, Post Office Box 2008, MS6493, Oak Ridge Tennessee, 37831-6493 USA
  • 2Center for Simulational Physics, University of Georgia, Athens Georgia, 30602 USA
  • 3Universität Osnabrück, Fachbereich Physik, D-49076 Osnabrück, Germany

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Vol. 96, Iss. 12 — 31 March 2006

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