随机开放量子系统模型及其反馈控制的特性分析

研究了不同情况下基于连续测量的随机开放量子系统模型。对于受到测量影响的不同开放量子系统模型，分析了模型建立的条件、模型的组成及其影响；对于所简化的模型，分析了其简化的过程；同时对不同模型之间的关系进行对比分析。基于估计状态的随机开放量子系统的反馈控制，分别对目前已有的开关控制和连续性控制在本征态之间状态转移的控制思想、所具有的特性、控制效果、适用条件、改进过程等进行了对比研究。同时还探讨了环境退相干和时间延迟影响下反馈控制器的设计。

Characteristics analysis of stochastic open quantum system models and feedback control

The stochastic open quantum system models undergoing continuous measurement in different cases are investigated. For different stochastic open quantum system models affected by the measurement, the model establishment conditions, the composition of model component and its effect are analyzed. For the simplified models, the processes of simplification are also analyzed. At the same time, the relationships between different models are compared. Based on the stochastic open quantum systems with the state estimation, , the existed switch and continuous control laws which are used to transfer the quantum states between the eigenstates are comparative analyzed from their control ideas, the characteristics, the control effect, the condition of using, to the improving process. The feedback controller design is also discussed under the influences of environment decoherence and time-delay.