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Campo DC | Valor | Idioma |
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dc.contributor.author | Carvalho Neto, Edgar Marcelino de | - |
dc.contributor.author | Andrade, Roberto Fernandes Silva | - |
dc.creator | Carvalho Neto, Edgar Marcelino de | - |
dc.creator | Andrade, Roberto Fernandes Silva | - |
dc.date.accessioned | 2012-09-28T18:59:17Z | - |
dc.date.available | 2012-09-28T18:59:17Z | - |
dc.date.issued | 2009-08 | - |
dc.identifier.issn | 0103-9733 | - |
dc.identifier.uri | http://www.repositorio.ufba.br/ri/handle/ri/6825 | - |
dc.description | p.417-422 | pt_BR |
dc.description.abstract | A numerically efficient transfer matrix approach is used to investigate the validity of the Tsallis scaling hypothesis in the long-range Ising spin chain with competitive interactions. In this model, the interaction between two spins i and j placed r lattice steps apart is Ji, j = (-1)ζ(i,j)J0/rα, where ζ(i, j) is either 0 or 1. This procedure has succeeded to show the validity of the scaling hypothesis for the well investigated ferromagnetic version of the model, i.e., ζ(i, j)= 0,∀i, j, ∀α > 0. Results are reported for some models of a set, which is defined by requiring ζ(i, j) to be a periodic sequence of 0's and 1's. As expected from symmetry arguments, we find that the hypothesis is not valid when ζ(i, j)= 1,∀i, j and α < 1. however, it is verified, with high degree of numerical accuracy, when α < 1, for sequences in which the occurrence of ζ(i, j)= 0 is more frequent than that of ζ(i, j)= 1. | pt_BR |
dc.language.iso | en | pt_BR |
dc.publisher | Sociedade Brasileira de Física | pt_BR |
dc.source | http://dx.doi.org/10.1590/S0103-97332009000400012 | pt_BR |
dc.subject | Competitive interactions | pt_BR |
dc.subject | Long-range Ising chain | pt_BR |
dc.title | Tsallis scaling in the long-range Ising chain with competitive interactions | pt_BR |
dc.title.alternative | Brazilian Journal of Physics | pt_BR |
dc.type | Artigo de Periódico | pt_BR |
dc.description.localpub | São Paulo | pt_BR |
dc.identifier.number | v. 39, n. 2a | pt_BR |
Aparece nas coleções: | Artigo Publicado em Periódico (FIS) |
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Carvalho Neto.pdf | 1,05 MB | Adobe PDF | Visualizar/Abrir |
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