Super quantum discord behaviors in two-qubit Heisenberg XYZ model with intrinsic decoherence

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Mirmasoudi Forouzan; Ahadpour Sodeif

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Paper Information

Journal: JOURNAL OF RESEARCH ON MANY BODY SYSTEMS Year:2018 | Volume:8 | Issue:17 Page(s): 181-189

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Title

Super quantum discord behaviors in two-qubit Heisenberg XYZ model with intrinsic decoherence

Author(s)

Mirmasoudi Forouzan | Ahadpour Sodeif | Issue Writer Certificate

Keywords

Quantum correlationsQ1

Super quantum discordQ1

Quantum discordQ1

Lyndblad equationQ1

Heisenberg modelQ1

CancurrenceQ1

Dzyaloshinskii-Moriya interactionQ1

Abstract

One of the key concepts in quantum information theory and quantum computing is the study of Quantum correlations. Other factors aside, the effect of decoherence on the Quantum correlations is very important. In this paper, dynamics of super-Quantum discord in Heisenberg model with Dzyaloshinskii-Moriya interaction and the influence of environmental decoherence by taking Lyndblad equation will be studied. We consider Werner state as the initial state of the system. By calculating the time evolution of the system, we figure out the influence of mixture degree r on the dynamics such as Quantum discord/fa?page=1&sort=1&ftyp=all&fgrp=all&fyrs=all" target="_blank">Super Quantum discord, Quantum discord and concurrence. A remarkable result is that when the initial state is Bell state the concurrence decay from 1 to a minimum value is close to 0 but the super-Quantum discord and Quantum discord vanish. This is contrary to recent results obtained. The effect of coupling between the quantum system and environment on superQuantum discord was investigated based on interaction parameters. The results showed that the magnitude of Dzyaloshinskii-Moriya interaction that represents the interaction of spin-orbit interaction has played a significant role in the amount of Quantum discord/fa?page=1&sort=1&ftyp=all&fgrp=all&fyrs=all" target="_blank">Super Quantum discord.

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APA: Copy

Mirmasoudi, Forouzan, & Ahadpour, Sodeif. (2018). Super quantum discord behaviors in two-qubit Heisenberg XYZ model with intrinsic decoherence. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, 8(17 ), 181-189. SID. https://sid.ir/paper/243746/en

Vancouver: Copy

Mirmasoudi Forouzan, Ahadpour Sodeif. Super quantum discord behaviors in two-qubit Heisenberg XYZ model with intrinsic decoherence. JOURNAL OF RESEARCH ON MANY BODY SYSTEMS[Internet]. 2018;8(17 ):181-189. Available from: https://sid.ir/paper/243746/en

IEEE: Copy

Forouzan Mirmasoudi, and Sodeif Ahadpour, “Super quantum discord behaviors in two-qubit Heisenberg XYZ model with intrinsic decoherence,” JOURNAL OF RESEARCH ON MANY BODY SYSTEMS, vol. 8, no. 17 , pp. 181–189, 2018, [Online]. Available: https://sid.ir/paper/243746/en

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