Approximate and Conditional Teleportation of an Unknown Atomic State with Dissipative Jayn

Approximate and Conditional Teleportation of an Unknown Atomic State with Dissipative Jaynes-Cummings Model

ZHOU Yu-Rong;CHEN Chang-Yong;PAN Hui-Mei;GUO Feng;PANG Xiao-Feng

【期刊名称】《理论物理通讯（英文版）》 【年(卷),期】2008(049)002

【摘要】A scheme for approximately and conditionally teleporting an unknown atomic state in dissipative cavity QED is proposed. It is the extension of the scheme of [Phys. Rev. A 69 (2004) 064302], where the cavity mode decay has not been considered and only a time point of system evolution and the corresponding fidelity implementing the teleportation are given. In fact, the cavity mode decay exists really and must be delt with. In this paper, we investigate the influence from the cavity mode decay on the implementation of the approximate and conditional teleportation by means of the dissipative Jaynes Cummings model and then show the analytical expression of the fidelity of realization of the teleportation, Alternatively, our scheme does not involve an additional atom, only requiring two atoms and one single-mode cavity.

【总页数】4页(355-358) 【关键词】

【作者】ZHOU Yu-Rong;CHEN Chang-Yong;PAN Hui-Mei;GUO