Faithful Teleportation of an Unknown Atomic State and a Cavity Field Entangled State Without Bell-state Measurement

Zhuo‐Liang Cao, Yan Zhao, Ming Yang

A.D. dSouza, Wesley Bueno Cardoso, Ardiley Torres Avelar +1 more

Zhen‐Biao Yang

An alternative scheme is proposed for teleportation of an unknown atomic state and an entanglement of zero- and one-photon states. The scheme is based on the resonant interaction of a two-mode cavity field with a ∧-type three-level atom. In contrast with the previously proposed schemes, the present scheme is ascendant, since the fidelity is 1.0 in principle similarly without the Bell-state measurement. And the scheme is experimentally feasible based on the current cavity QED technique.

Zhongjie Wang, Xu Fang

Lin Xiu, Hongcai Li, Rong‐Can Yang +1 more

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.

Wesley Bueno Cardoso, Ardiley Torres Avelar, B. Baseia

We consider a protocol recently proposed by Zhen-Biao Yang for teleporting entangled photon states from one bimodal cavity to another. It is shown that the proposed protocol can afford full success probability instead of the 1/4 success probability that the author ascribed to his scheme.