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.

Highlights

  • Nowadays, correlated systems represent one of the most important partners in the context of quantum communication [1] [2], quantum networks [3] [4] and quantum computers

  • 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

  • Decay faster before arrive at a steady-going non-zero value for the long-time case for different values of the DM interaction in Figure 6, which means that the inhomogeneous external magnetic field is a positive component to the entanglement when the partial anisotropic parameter of the system is at a fixed non-zero value

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Summary

Introduction

Nowadays, correlated systems represent one of the most important partners in the context of quantum communication [1] [2], quantum networks [3] [4] and quantum computers. We have motivated to investigate the behavior of quantum correlation for the system consists of two different dimensional subsystems in the presences of intrinsic decoherence. We need to investigate the effect of the dimensions of the system that passes through this type of noise on the degree of correlations between its subsystems. They use measurement-induced disturbance (MID), which does not include improvement methodology, to portray correlations as classical or quantum [17].

Model and Solution
Quantum Correlation via Measurement-Induced Disturbance
Quantum Discord
Conclusion

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