Disentanglement, Bell-nonlocality violation and teleportation capacity of the decaying tripartite states

作者：Hu Ming Liang^*

来源：Annals of Physics, 2012, 327(9): 2332-2342.

DOI：10.1016/j.aop.2012.05.007

• Disentanglement
• Bell inequality
• Teleportation

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.

• 出版日期2012-9