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Exact Dynamics of a Single-Qubit System in Layered Environment

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Abstract

Quantum dynamics of a central single-qubit system under quantum Heisenberg XY interaction, in a layered fermionic environment, is studied. Also we discuss it’s time evolution in the presence of finite and infinite number of environmental spins. Finally, using the Nakajima-Zwanzig and the time-convolutionless projection operator techniques to the generalized spin star model, the exact time evolution of the reduced density operator is derived.

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Authors and Affiliations

  1. Department of Theoretical Physics and Astrophysics, University of Tabriz, Tabriz, 51664, Iran

    Mahmoud Mahdian & Hadi Mehrabpour

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  1. Mahmoud Mahdian
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  2. Hadi Mehrabpour
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Correspondence to Mahmoud Mahdian.

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Mahdian, M., Mehrabpour, H. Exact Dynamics of a Single-Qubit System in Layered Environment. Int J Theor Phys 54, 2684–2699 (2015). https://doi.org/10.1007/s10773-014-2503-0

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