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中文摘要：
研究了弱测量的性质以及潜在应用.首先,针对所定义的一类特定的正定算子值测量,从线性赋范空间的角度推导出其为弱测量时的参数条件.其次,讨论了弱测量的适用性:弱测量不仅适用于大量全同量子系统,若任意的测量算符都能够被选择性地施加,则弱测量也能够对单个的量子系统进行测量.最后,考察了弱测量对不同的量子系统的影响:对于大量全同量子系统,连续的弱测量对状态产生的影响相当于一个消相位过程,而对于单个的二能级量子系统,弱测量能够被用来抑制消相位以及去极化过程.
英文摘要：
Properties and potential applications of weak measurement are investigated.First,a kind of positive operator-valued measurement is defined,and a sufficient condition is deduced for weak measurement from the view of linear normed space.Secondly,the applicability of weak measurement is discussed.It is shown that weak measurement is applicable not only to a set of identical quantum systems,but also to a single quantum system if any measurement operator can be selectively implemented.Finally,the effects of weak...
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PID-Like Neural Network Nonlinear Adaptive Control for Uncertain Multivariable Motion Control System
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