项目名称: 无相互作用量子系统间的量子纠缠和量子关联研究
项目编号: No.U1204616
项目类型: 联合基金项目
立项/批准年度: 2013
项目学科: 信息四处
项目作者: 胡要花
作者单位: 洛阳师范学院
项目金额: 26万元
中文摘要: 本项目将系统地研究噪声环境下,无相互作用量子系统间的量子纠缠和量子关联动力学及其调控问题。该系统可以用来模拟量子网络中相距遥远的各个节点间的动力学行为,因此该课题的研究对量子网络和量子信息处理的实现起着重要的作用。本项目首先研究无相互作用量子系统间的纠缠和量子关联动力学行为,考察环境因素和系统参量对纠缠和量子关联动力学行为的影响,确定纠缠和量子关联保持的充分必要条件与符合实验实现的优化参数区域。然后研究噪声环境下使无相互作用量子系统间的纠缠和量子关联提高、长时间保持的量子调控方法,寻找使纠缠和量子关联增强、再生或保持的最佳调控技术参数,为量子网络中各节点间纠缠和量子关联的调控提供理论依据。此外还将结合本领域国内外的研究进展,特别是实验方面的进展,提出符合实际应用条件的量子纠缠和量子关联调控的可行新方案,这将有助于实现量子网络中各节点间量子纠缠和量子关联的控制。
中文关键词: 量子纠缠;量子关联;无相互作用量子系统;噪声环境;量子密码
英文摘要: In this project, I shall systemly study quantum correlation (entanglement and quantum discord) dynamics between noninteracting quantum systems in noisy environment, and control of entanglement and quantum discord. This study is of significance for quantum network and quantum information processing, because the dynamics between noninteracting quantum systems can be used to simulate the evolution of quantum correlation between nodes in quantum network. I shall study the entanglement and quantum discord dynamics between the noninteracting quantum systems, investigate the effect of the environment factor and the system parameters on entanglement and quantum discord, and find some necessary and sufficient conditions, appropriate system parameters for the maintenance of entanglement and quantum discord. Then I shall study control of the entanglement and quantum discord of the considered system, and investigate parameters optimization of the system for the enhancement, retrieval and maintenance of entanglement and quantum discord, which provide the theory basis for availably manipulating the entanglement and quantum discord between noninteracting quantum systems in noisy environment. In addition, I shall combine with the recent progress in this field, espetially the experimental advancements, design a practicable pr
英文关键词: quantum entanglement;quantum correlation;noninteracting quantum systems;noise environment;quantum cryptography