Faithful teleportation of an unknown atomic state and a cavity field entangled state without Bell-state measurement

摘要

An alternative scheme is proposed for teleportation of an unknown atomic state and an entanglement of zero- and one-photon states. The scheme is based on the resonant interaction of a two-mode cavity field with a A-type three-level atom. In contrast with the previously proposed schemes, the present scheme is ascendant, since the fidelity is 1.0 in principle similarly without the Bell-state measurement. And the scheme is experimentally feasible based on the current cavity QED technique.