One-step implementation of a swap gate with coherent-state qubits via atomic ensemble large detuning interaction with two-mode cavity quantum electrodynamics

摘要

We present a scheme to implement the coherent-state qubit SWAP gate. The scheme uses an atomic ensemble consisting of a three-level atom large detuning interacting with a two-mode field. Both situations, with and without cavity decay, are considered. We discuss the advantages and the experimental feasibility of our scheme.