info:eu-repo/semantics/article
Wang-Landau algorithm: A theoretical analysis of the saturation
Fecha
2007-12Registro en:
Belardinelli, Rolando Elio; Pereyra, Victor Daniel; Wang-Landau algorithm: A theoretical analysis of the saturation; American Institute of Physics; Journal of Chemical Physics; 127; 18; 12-2007; 1841051-1841057
0021-9606
CONICET Digital
CONICET
Autor
Belardinelli, Rolando Elio
Pereyra, Victor Daniel
Resumen
In this work we present a theoretical analysis of the convergence of the Wang-Landau algorithm [Phys. Rev. Lett. 86, 2050 (2001)] which was introduced years ago to calculate the density of states in statistical models. We study the dynamical behavior of the error in the calculation of the density of states. We conclude that the source of the saturation of the error is due to the decreasing variations of the refinement parameter. To overcome this limitation, we present an analytical treatment in which the refinement parameter is scaled down as a power law instead of exponentially. An extension of the analysis to the N -fold way variation of the method is also discussed.