Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1855125 | Annals of Physics | 2012 | 11 Pages |
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.
► Comparison of different aspects of quantum correlations. ► Robustness of the initial tripartite GHZ and WW class states against decoherence. ► Bell-nonlocality sudden death under the influence of thermal reservoir. ► A nonzero minimum tripartite negativity is needed for nonclassical teleportation. ► All the Bell-nonlocal states yield nonclassical teleportation fidelity.