Wang-landau sampling: improving accuracy

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dc.creatorCaparica, Álvaro de Almeida
dc.creatorCunha Netto, Antônio Gonçalves da
dc.date.accessioned2018-06-12T12:54:53Z
dc.date.available2018-06-12T12:54:53Z
dc.date.issued2012
dc.description.abstractIn this work, we investigate the behavior of the microcanonical and canonical averages of the two-dimensional Ising model during the Wang-Landau simulation. The simulations were carried out using conventional Wang- Landau sampling and the 1/t scheme. Our findings reveal that the microcanonical average should not be accumulated during the initial modification factors f, and they outline a criterion to find this limit, which we define as fmicro. We show that updating the density of states only after every L2 spin-flip trials leads to a much better precision. We present a mechanism to determine for the given model up to what final modification factor ffinal the simulations should be carried out. Altogether these small adjustments lead to an improved procedure for simulations with much more reliable results. We compare our results with 1/t simulations. We also present an application of the procedure to a self-avoiding homopolymer.pt_BR
dc.identifier.citationCAPARICA, A. A.; CUNHA NETTO, A. Wang-landau sampling: improving accuracy. Physical Review. E, Melville, v. 85, e046702, 2012.pt_BR
dc.identifier.doi10.1103/PhysRevE.85.046702
dc.identifier.issne- 1550-2376
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/15210
dc.language.isoengpt_BR
dc.publisher.countryEstados unidospt_BR
dc.publisher.departmentInstituto de Física - IF (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.titleWang-landau sampling: improving accuracypt_BR
dc.typeArtigopt_BR

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