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Entanglement Evolution of the Extended Werner-like State under the Influence of Different Noisy Channels

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Abstract

The entanglement evolution of the bipartite quantum system which is initially prepared in extended Werner-like state under the influence of independent or collective noisy channels are investigated by solving the master equation in Lindblad form. With the aid of the concurrence, we find that the initial state can preserve more entanglement in certain region when it is transmitted through the collective Pauli σ x or σ y noisy channel than the corresponding independent noisy channel. For the Pauli σ z or the depolarizing channel, however, the collective decoherence can speed up the process of entanglement decay. Meanwhile, we show that the purity of initial state has a great influence on the region which the entanglement can be preserved.

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Authors and Affiliations

  1. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin, Heilongjiang, 150001, China

    Li-Nan Jiang, Jing Ma, Si-Yuan Yu, Li-Ying Tan & Qi-Wen Ran

  2. College of Science, Northeast Dianli University, Jilin City, Jilin, 132012, China

    Li-Nan Jiang

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  1. Li-Nan Jiang
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  2. Jing Ma
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  3. Si-Yuan Yu
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  4. Li-Ying Tan
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Correspondence to Li-Nan Jiang.

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Jiang, LN., Ma, J., Yu, SY. et al. Entanglement Evolution of the Extended Werner-like State under the Influence of Different Noisy Channels. Int J Theor Phys 54, 440–449 (2015). https://doi.org/10.1007/s10773-014-2238-y

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  • DOI: https://doi.org/10.1007/s10773-014-2238-y

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