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Information Loss in Local Dissipation Environments

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Abstract

The sensitivity of entanglement to the thermal and squeezed reservoirs’ parameters is investigated regarding entanglement decay and what is called sudden-death of entanglement, for a system of two qubit pairs. The dynamics of information is investigated by means of the information disturbance and exchange information. We show that for squeezed reservoir, we can keep both of the entanglement and information survival for a long time. However the sudden death of information is depicted clearly when the entangled qubit system interacts with thermal reservoir. By controlling the environmental parameters, one can reduces the lose of the encrypted information.

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  1. N. Metwally

    Present address: Mathematics Department, College of Science, University of Bahrain, 32038, Sukhair, Bahrain

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  1. Mathematics Department, Faculty of Science, South Valley University, Aswan, Egypt

    N. Metwally

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  1. N. Metwally
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Correspondence to N. Metwally.

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Metwally, N. Information Loss in Local Dissipation Environments. Int J Theor Phys 49, 1571–1579 (2010). https://doi.org/10.1007/s10773-010-0339-9

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  • DOI: https://doi.org/10.1007/s10773-010-0339-9

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