Non-Markovian dynamics of spin squeezing |
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Authors: | Peng Xue |
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Institution: | Department of Physics, Southeast University, Nanjing 211189, China |
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Abstract: | We evaluate the spin squeezing dynamics of N independent spin-1/2 particles with exchange symmetry. Each particle couples to an individual and identical reservoir. We study the time evolution of spin squeezing under the influence of different decoherence. The spin squeezing property vanishes with evolution time under Markovian decoherence, while it collapses quickly and revives under non-Markovian decoherence. As spin squeezing can be regarded as a witness of multipartite entanglement, our scheme shows the collapses and revivals of multipartite entanglement under the influence of non-Markovian decoherence. |
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Keywords: | Spin squeezing Non-Markovian decoherence |
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