Teleportation of N-qubit W State without Bell-State Measurement via Selective Resonant Interaction in Cavity QED

Wesley Bueno Cardoso

Wenxue Zhong, Geng Jun, Guangling Cheng +1 more

We present a scheme in which the N-atom W state is teleported by employing the selective interaction of a cavity field with a driven three-level atom in the A configuration and detecting a single atom in one of the ground states. The long-lived W state is teleported from atom A to atom B when the atoms B and A are sent through a cavity successively and atom A is then detected. The advantage is that the present one does not involve the Bell-state measurement and is robust against the atomic spontaneous emission.

Ai-Xi Chen

We design a scheme to transfer N-qubit GHZ state in cavity quantum electrodynamics(QED).By selecting the right Hamiltonian,without Bell-state measurement,the N-qubit GHZ state can be teleported from atom A to atom B.Of course,the demand is that we should choose the right time between the cavity and the atom in the process of transmission.

Bo Zhang, Xingtong Liu, Jian Wang +1 more

Qiu Chang-dong

The interaction of V-type three-level atom with two-mode cavity field is described and the interaction formula between atom and cavity field is obtained.An alternative scheme is proposed for teleportation of an unknown atomic-entangled state without the Bell-state measurement.The scheme is based on the resonant interaction of V-type three-level-atom with two-mode cavity field.By means of selective measurement on the atom to be teleported state,it follows that the teleportation of an unknown atomic-entangled state is realized.And the scheme is experimentally feasible based on the current cavity QED technique and the success probability is 1/16.

Zheng‐Yuan Xue, Ming Yang, You-Ming Yi +1 more