基于耦合光学微腔体系的量子通信器件研究

项目名称： 基于耦合光学微腔体系的量子通信器件研究

项目编号： No.61471050

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 无线电电子学、电信技术

项目作者： 王川

作者单位： 北京邮电大学

项目金额： 90万元

中文摘要： 光学微腔与二能级原子耦合系统是实现量子信息处理过程的理想的体系。由于受到环境以及噪声的影响，量子体系会出现退相干效应。本申请针对微腔与微腔耦合系统，以及微腔与原子的腔量子电动力学体系中有效耦合问题以及退相干问题。在理论上研究利用偶极阻塞效应，避错编码等方法实现主动的克服腔量子电动力学体系退相干过程；结合实际的物理系统，研究人工原子与微腔中光力学模式的有效相互作用以及量子态的操控方法，将其应用到量子逻辑门以及量子中继系统；探索多个微腔耦合的动力学机制，以及非线性效应对耦合腔系统的影响，探索非线性微腔和原子耦合系统的新奇量子现象。在实验上制备高Q值光学微球腔和光学微芯圆环腔，研究微腔之间的量子纠缠产生过程；实现掺杂增益介质微腔的滤波器, 探索实现基于微腔系统的存储器等量子系统。以此阐明腔量子电动力学体系作为信息处理载体的优势，以期为量子处理器的提供技术储备。

中文关键词： 量子通信；耦合光学微腔；量子器件

英文摘要： The optical micro-cavity and two-level atom coupling system is the ideal platform for the realization of quantum information processing (QIP). As affected by the environment and the channel noise, the system will inevitably under decoherence. The project is going to study of the effective coupling and the decoherence effect of the coupled cavities and the micro-cavity atom coupled cavity quantum electrodynamics system. Exploiting the dipole block effect and error rejection encoding protocol, we plan to find the effective method to realize QIP against decoherence effect in the system theoretically. Also our research is focus on the effective interaction between the artificial atom and the optomechanical mode of the micro-cavity, and the realization of various quantum logic gates and the quantum repeaters. We plan to investigate the dynamics of the coupling between resonators and the nonlinear effect on the coupling resonators, in order to find novel quantum phenomenon. Experimentally, we plan to prepare the high Q optical microsphere and microtoroid, and investigate the entanglement generation between the coupling resonators. We also focus on the realization of filters, routers and sensers based on microtoroid with gain media.

英文关键词： Quantum communications;Coupled optical microcavities;Quantum devices