多模腔场与耦合原子之间量子纠缠信息的传递规律  

A Way of Transmitting Quantum Entangled Information Between Multimode Cavity Fields and Coupling Atoms

作　　者：王菊霞[1] 安毓英[1] 杨志勇[1] 

机构地区：[1]西安电子科技大学技术物理学院

出　　处：《光子学报》2007年第12期2355-2359,共5页Acta Photonica Sinica

基　　金：陕西省自然科学基金(2004A19;2001SL04);陕西省科技攻关项目(2002K05-G9);渭南师院重点科研基金(06YKF012)资助

摘　　要：提出了多个"耦合双原子-腔-多模光场"相互作用系统的集合模型,发现了该物理系统中量子纠缠信息的传递规律.即:处于基态的原子以特定速度通过处于纠缠态的腔场时,原子能够将光场的纠缠信息据为已有;反之,纠缠原子以特定速度通过真空场时,原子能把纠缠信息释放于腔中,这样便实现了腔-原子之间纠缠信息的交换传递.利用原子能够捡起、释放量子纠缠信息的特点,进一步实现腔-腔之间异地量子纠缠信息的传递.在不同条件下,量子纠缠信息还可以保持.A physical system which consists of the multimode cavity fields and the coupling atoms was proposed. In this system, a novel way of translating quantum entangled information has been discovered. The atoms can get the quantum entangled information stored in the entangled state of the cavity field when the atoms,which all are initially in ground state,cross the cavities with a controlled speed. And the atoms can release the quantum entangled information into the vacuum state cavities when the entangled state atoms cross the cavities. By this＇means, one can realize the entangled information exchange between cavities and atoms. The quantum entangled information transferring between two sets cavities was also discussed using the atomic properties which the atoms can pick up and release quantum entangled information. Besides,the quantum information can be preserved under the different time conditions.

关 键 词：腔量子电动力学 多模腔场 耦合原子 量子纠缠信息 传递 

分 类 号：O431[机械工程—光学工程]