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Título:
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Scaling law for topologically ordered systems at finite temperature
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Autores:
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Iblisdir, I. ;
Pérez García, David ;
Aguado, M. ;
Pachos, J.
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Society, 2009-04-16
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física: Física matemática
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Tipo = Artículo
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Resumen:
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Understanding the behavior of topologically ordered lattice systems at finite temperature is a way of assessing their potential as fault-tolerant quantum memories. We compute the natural extension of the topological entanglement entropy for T>0, namely, the subleading correction I(topo) to the area law for mutual information. Its dependence on T can be written, for Abelian Kitaev models, in terms of information-theoretical functions and readily identifiable scaling behavior, from which the interplay between volume, temperature, and topological order, can be read. These arguments are extended to non-Abelian quantum double models, and numerical results are given for the D(S(3)) model, showing qualitative agreement with the Abelian case.
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En línea:
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https://eprints.ucm.es/id/eprint/17749/4/0806.1853v2.pdf
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