Schemes for Probabilistic Teleportation of a Three-Atom GHZ Class State via Cavity QED

Dong, Ping Ping, Yang Yang +3 more

Zhuo‐Liang Cao, Ming Yang, Guang‐Can Guo

Zhen‐Biao Yang, Huai‐Zhi Wu, Wan-Jun Su +2 more

YI-CAI WANG, Liu Jin-Ming

Using a quantum channel composed of a two-atom and a three-atom nonmaximally entangled states, we present two schemes to teleport a three-atom GHZ class state via entanglement swapping in cavity QED with different success probabilities. The schemes can be respectively realized with the large-detuned vacuum cavities and with the large-detuned thermal cavities by separate atomic measurements after we choose appropriate atom-cavity-field interaction time.

Xuewen Wang, Biao He, Zao Yi +2 more

We present a feasible scheme for teleportation of four-qubit cluster-class state in cavity QED. Two Greenherg-Horne-Zeilinger (GHZ) pairs are chosen as the quantum channel. By using the atom-cavity field interaction in the dispersive regime and with the assistance of a strong classical field, we can prepare the entangled quantum channel, accomplish the joint three-qubit measurement and then teleport the cluster-class state from the sender (Alice) to the Receiver (Bob) successfully. It is noted that this scheme is insensitive to both the cavity decay and the thermal field.

N. G. de Almeida, Leonardo Paulo Maia, Celso J. Villas-Bôas +1 more