Two-Qubit Logic Gates and Teleportation of an Entangled State of Atom-Cavity with Cavity QED

In this paper, a scheme is proposed for realization of two-qubitcontrolled-not gates and teleportation of an entangled state of atom-cavity.In this scheme, applying hyperfine levels of atom, we consider Λ-type three-level atom interacting resonantly or nonresonantly with cavityfield that is prepared in σ^- polarized. We consider the experimental feasibility of this scheme and compare our results with other schemes.