Dynamics of quantum discord of two coupled spin-1/2’s subjected to time-dependent magnetic fields

We describe the dynamics of quantum discord of two interacting spin-1/2’s subjected to controllable time-dependent magnetic fields. The exact time evolution of discord is given for various input mixed states consisting of classical mixtures of two Bell states. The quantum discord manifests a complex...

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Bibliographic Details
Main Authors: Roberto Grimaudo, Aurelian Isar, Tatiana Mihaescu, Iulia Ghiu, Antonino Messina
Format: Article
Language:English
Published: Elsevier 2019-06-01
Series:Results in Physics
Online Access:http://www.sciencedirect.com/science/article/pii/S2211379719301275