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Natural Science Journal of Xiangtan University

Teleportation of an Unknown Two-Mode Two-Photon Entangled State in Cavity QED

Qiu Chang-dong

Published Jan 1, 2010• 0 citations
OpenAlex

Abstract

An alternative scheme is proposed for teleportation of an unknown two-mode two-photon entangled state in cavity QED without the Bell-state measurement.The scheme is based on the resonant interaction of Λ-type three-level atom with two-mode cavity field,and the total success probability is 1/9.The scheme is experimentally feasible based on the current cavity QED technique.On the other hand,the scheme can be generalized for teleportation of two-mode N-photon entangled state α|N,0〉+β|0,N〉.

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An alternative scheme is proposed for teleportation of an unknown two-mode two-photon entangled state in cavity QED without the Bell-state measurement.The scheme is based on the resonant interaction of Λ-type three-level atom with two-mode cavity field,and the total success probability is 1/9.The scheme is experimentally feasible based on the current cavity QED technique.On the other hand,the scheme can be generalized for teleportation of two-mode N-photon entangled state α|N,0〉+β|0,N〉.
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.
An alternative scheme is proposed for teleportation of an unknown atomic-entangled state. The scheme is based on the resonant interaction of a two-mode cavity field with a Λ-type three-level atom. In contrast with the previously proposed scheme of [Commun. Theor. Phys. 47 (2007) 253], the present scheme is ascendant, since the fidelity is 1.0 in principle similarly without the Bell-state measurement. The scheme may be generalized to not only the teleportation of the cavity-mode-entangled-state but also the teleportation of the multi-atomic entangled states included in generalized GHZ states. And the scheme is experimentally feasible based on the current cavity QED technique.
Time evolution of state vector of the system of V-type three-level-atom interacting with two-mode 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.