Konu "Decoherence channels" için FEF - Makale Koleksiyonu | Enformasyon Teknolojileri Bölümü / Department of Information Technologies listeleme
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Phase damping destroys quantum Fisher information of W states
(Elsevier Science BV, 2014-09-05)We study the quantum Fisher information (QFI) of W states in the basic decoherence channels. We show that, as decoherence starts and increases, under i) depolarizing, QFI smoothly decays; ii) amplitude damping, QFI first ...