摘要
Abstract According to the protocol of Agrawal et al., we propose a cavity QED scheme for realization of teleportation and dense coding. Instead of using EPR states and GHZ states, our scheme is more insensitive to the loss of one particle by using a W-class state as a quantum channel. Besides, our scheme is immune to thermal field, and does not require the cavity to remain in the vacuum state throughout the procedure.
基金
The project supported by National Natural Science Foundation of China under Grant No.10674025
Funds from Key Laboratory of Quantum Information of University of Science and Technology of China
