摘要
The dynamic behavior of the entanglement for the pair cat states in the amplitude decoherence channel isstudied by adopting the entanglement of formation determined by the concurrence.Then,we consider the teleportationby using joint measurements of the photon-number sum and phase difference with the pair cat states as an entangleresource and discuss the influence of amplitude decoherence on the mean fidelity of the teleportation.
基金
Supported by National Natural Science Foundation of China under Grant No.10774143
the National Key Project for Fundamental Research of China under Grant No.2006CB921403
