【作者】 匡森； 丛爽；

【Author】 Kuang Sen,Cong Shuang Department of Automation,University of Science and Technology of China,Hefei 230027

【机构】 中国科学技术大学自动化系；

【摘要】 基于Bures距离选择一个表征量了系统期望的目标态与系统状态之间距离的李雅谱诺夫函数,分别针对系统初始态与期望态正交以及不正交的情况,设计出保证系统稳定的反馈控制律。最后,对于自旋1／2粒子系统进行了两种类型控制律的系统仿真实验,对不同参数值情况下的系统演化时间以及控制律的大小进行了效果分析。更多还原

【Abstract】 Based on Bures distance,a Lyapounov function that represents a desired state and an actual state is selected for quantum systems. Considering the problems that the initial state is and isn’t orthogonal to the desired state respectively, a class of feedback control strategies is designed that ensures the stability of closed-loop systems. Finally, we make a simulation experiment on a spin-1/2 system with two types of controls and make an effect analysis of system evolution time and control size in the cases with different parameters.更多还原