Transferring a cavity field entangled state in cavity QED

摘要

We propose a scheme for transferring an entanglement of zero- and one-photon states from one cavity to another. The scheme, which has 100% success probability, is mainly based on a two-mode cavity dispersively interacting with a three-level atom in the A configuration and does not involve Bell-state measurement. This scheme can also be used to teleport an unknown atomic state.