Teleportation for Atomic State Based on Disentanglement-Free State

Zhongjie Wang, Jingjing Zhang, Qijia Tai

Cong Li

In order to suppress the influence of the environment on quantum teleportation,a scheme of quantum teleportation was presented based on decoherent-free subspace.In this scheme,a kind of disentanglement-free atomic sixbit state is taken as quantum entanglement channel,and the teleportated one logical qubit quantum information is encoded into three-bit atomic state which can avoid against influence of the environment.The properties of the quantum teleportation scheme and its experimental realization were analyzed.The result shows that the whole teleportation process is immune to amplitude-flip and phase-flip noises induced by the environment and the success probability for this scheme is 44%.

Wesley Bueno Cardoso, N. G. de Almeida

Kehui Song, Yun-Kun Jiang, Bao‐Sen Shi +1 more

In this paper, the disentanglement-free state is prepared by using the cavity QED technique. Through this disentanglement-free state we have obtained a long-distance Einstein-Podolsky-Rosen (EPR) pair. By using n EPR pairs of distance-atom and n distance-cavity, the entanglement of the n distance-cavity has been obtained. This entanglement can then be used in quantum communications.

Shangqing Gong, Zhongyang Wang, Xun‐Li Feng +1 more

Xue, Zheng-Yuan, Yi Yi +3 more