Approximate Teleportation of an Unknown Atomic-Entangled State with Dissipative Atom-Cavity Resonant Jaynes-Cummings Model

摘要

We propose a scheme for approximately and conditionally teleporting an unknown atomic-entangled statein dissipative cavity QED.It is the further development of the scheme of [Phys.Rev.A 69 (2004) 064302],where thecavity mode decay has not been considered and the state teleportated is an unknown atomic state.In this paper,weinvestigate the influence of the decay on the approximate and conditional teleportation of the unknown atomic-entangledstate,which is different from that teleportated in [Phys.Rev.A 69 (2004) 064302] and then give the fidelity of theteleportation,which depends on the cavity mode decay.The scheme may be generalized to not only the teleportationof the cavity-mode-entangled-state by means of a singIe atom but also the teleportation of the unknown trapped-ion-entangled-state in a linear ion trap.