Fast Algorithm to Calculate Density of States
Statistical Mechanics
2015-06-25 v2
Abstract
An algorithm to calculate the density of states, based on the well-known Wang-Landau method, is introduced. Independent random walks are performed in different restricted ranges of energy, and the resultant density of states is modified by a function of time, F(t)=1/t, for large time. As a consequence, the calculated density of state, gm(E,t), approaches asymptotically the exact value gex(E) as 1/sqrt(t), avoiding the saturation of the error. It is also shown that the growth of the interface of the energy histogram belongs to the random deposition universality class.
Cite
@article{arxiv.cond-mat/0701672,
title = {Fast Algorithm to Calculate Density of States},
author = {R. E. Belardinelli and V. D. Pereyra},
journal= {arXiv preprint arXiv:cond-mat/0701672},
year = {2015}
}
Comments
5 pages, 5 figures