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Efficient scheme for teleportation of an unknown N -atom state via a two-atom entangled state without the Bell-state measurement in cavity QED

2006; IOP Publishing; Volume: 15; Issue: 4 Linguagem: Inglês

10.1088/1009-1963/15/4/004

1741-4199

Xin-Wen Wang, Xiang Liu, Mao-Fa Fang,

Quantum optics and atomic interactions

We propose a scheme for teleportation of an unknown N-atom state using a two-atom entangled state within a cavity QED and show the feasibility in experiment. Our scheme does not involve the Bell-state measurement and is insensitive to the cavity decay, which is important from the experimental point of view. Another feature of the scheme is that teleporting a N-atom state just requires a small amount of entanglement (i.e. a two-atom entangled state) and less classical bits (two bits).