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Título : Optimized multicanonical simulations: A proposal based on classical fluctuation theory
Autor : Viana Lopes, Joao; Costa, Miguel D.; Lopes dos Santos, J. M. B.; Toral, Raúl
Palabras clave : Fluctuations
Recursive estimation
Electronic density of states
Monte Carlo methods
Fecha de publicación : 5-oct-2006
Editor: American Physical Society
Citación : Physical Review E 74, 046702 (2006)
Resumen: We propose a recursive procedure to estimate the microcanonical density of states in multicanonical Monte Carlo simulations which relies only on measurements of moments of the energy distribution, avoiding entirely the need for energy histograms. This method yields directly a piecewise analytical approximation to the microcanonical inverse temperature beta(E) and allows improved control over the statistics and efficiency of the simulations. We demonstrate its utility in connection with recently proposed schemes for improving the efficiency of multicanonical sampling, either with adjustment of the asymptotic energy distribution or with the replacement of single spin flip dynamics with collective updates.
Descripción : 9 pages.-- PACS numbers: 02.70.Rr, 64.60.Cn, 75.10.Hk, 05.10.Ln.-- Final full-text version of the paper available at: http://dx.doi.org/10.1103/PhysRevE.74.046702.
URI : http://hdl.handle.net/10261/6094
DOI: 10.1103/PhysRevE.74.046702
ISSN: 1539-3755
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