基于免退纠缠态的原子态隐形传输  

Teleportation for Atomic State Based on Disentanglement-Free State

作　　者：王中结[1] 阮飞[1] 方旭[1] 

机构地区：[1]安徽师范大学物理与电子信息学院,安徽芜湖241000

出　　处：《光学学报》2015年第3期338-343,共6页Acta Optica Sinica

基　　金：安徽省自然科学基金(090412060)

摘　　要：量子隐形传态易受噪声环境的影响。为了减小这种不利影响,基于振幅衰减噪声模型,提出一种基于免退纠缠态和量子错误避免代码技术的量子隐形传态方案。在这个方案中,一种4比特的免退纠缠态被作为量子纠缠信道,被传输的单个比特的量子信息被编码为两个比特。该方案的优点是隐形传输具有非常高的保真度,并且具有100%成功率。该项研究对改善量子通讯有重要的作用。Quantum teleportation is easily effected by noisy environment. In order to decrease this adverse effect induced by the amplitude-damping noisy environment, a scheme for quantum teleportation is proposed based on disentanglement- free state and quantum error- avoiding codes. In this scheme, a kind of disentanglement- free four- qubit state is used as the quantum entanglement channel, and single qubit of the teleportated quantum information is encoded into two qubits. This scheme has the advantages that quantum teleportation has full fidelity and the success probability for this teleportation scheme is 100%. The study has important applications in improvement of quantum communication.

关 键 词：量子光学 隐形传输 免退纠缠态 量子错误避免编码 

分 类 号：O431[机械工程—光学工程]