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Study the Entanglement Dynamics of an Anisotropic Two-Qubit Heisenberg XYZ System in a Magnetic Field
Mathematics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
Mathematics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
- 1 Mathematics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
- 2 Mathematics Department, Faculty of Science, Al-Azhar University, Cairo, Egypt
Journal of Quantum Information Science·Volume 07 (2017)·Pages 160–171·Published 7 November 2017·DOI10.4236/jqis.2017.74013
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Abstract
We investigate the entanglement dynamics of an anisotropic two-qubit Heisenberg XYZ system with Dzyaloshinskii-Moriya (DM) interaction in the presence of both inhomogeneity of the external magnetic field b and intrinsic decoherence which has been studied. The behavior of quantum correlation and the degree of entanglement between the two subsystems is quantified by using measurement-induced disturbance (MID), negativity (N) and Quantum Discord (QD), respectively. It is shown that in the presence of an inhomogeneity external magnetic field occur the phenomena of long-lived entanglement. It is found that the initial state is the essential role in the time evolution of the entanglement.
KeywordsDifferent Dzyaloshinski-Moriya InteractionsEntanglementDecoherence
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