کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1855125 | 1529887 | 2012 | 11 صفحه PDF | دانلود رایگان |
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.
Journal: Annals of Physics - Volume 327, Issue 9, September 2012, Pages 2332–2342