The Controlled Teleportation of an Arbitrary Two-Atom Entangled State in Driven Cavity QED

摘要

In this paper, we propose a scheme for the controlled teleportation of an arbitrary two-atom entangled state |phi >(12)=a|gg >(12)+b|ge >(12)+c|eg >(12)+d|ee >(12) in driven cavity QED. An arbitrary two-atom entangled state can be teleported perfectly with the help of the cooperation of the third side by constructing a three-atom GHZ entangled state as the controlled channel. This scheme does not involve apparent (or direct) Bell-state measurement and is insensitive to the cavity decay and the thermal field. The probability of the success in our scheme is 1.0.