Disentanglement,Bell-nonlocality violation and teleportation capacity of the decaying tripartite states |
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Authors: | Ming-Liang Hu |
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Institution: | School of Science, Xi’an University of Posts and Telecommunications, Xi’an 710061, China |
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Abstract: | Dynamics of disentanglement as measured by the tripartite negativity and Bell nonlocality as measured by the extent of violation of the multipartite Bell-type inequalities are investigated in this work. It is shown definitively that for the initial three-qubit Greenberger–Horne–Zeilinger (GHZ) or W class state preparation, the Bell nonlocality suffers sudden death under the influence of thermal reservoirs. Moreover, all the Bell-nonlocal states are useful for nonclassical teleportation, while there are entangled states that do not violate any Bell-type inequalities, but still yield nonclassical teleportation fidelity. |
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