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Título:
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Strong resilience of topological codes to depolarization
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Autores:
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Bombin, H. ;
Ruben, S. Andrist ;
Masayuki, Ohzeki ;
Katzgraber, Helmut G. ;
Martín-Delgado Alcántara, Miguel Ángel
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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 (APS), 2012-04-30
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Dimensiones:
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application/pdf
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Nota general:
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cc_by
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-Modelos matemáticos
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Tipo = Artículo
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Resumen:
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The inevitable presence of decoherence effects in systems suitable for quantum computation necessitates effective error-correction schemes to protect information from noise. We compute the stability of the toric code to depolarization by mapping the quantum problem onto a classical disordered eight-vertex Ising model. By studying the stability of the related ferromagnetic phase via both large-scale Monte Carlo simulations and the duality method, we are able to demonstrate an increased error threshold of 18.9(3)% when noise correlations are taken into account. Remarkably, this result agrees within error bars with the result for a different class of codes—topological color codes—where the mapping yields interesting new types of interacting eight-vertex models.
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En línea:
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https://eprints.ucm.es/id/eprint/47734/1/Mart%C3%ADn%20Delgado%20Alc%C3%A1ntara%20M%C3%81%2018%20LIBRE.pdf
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