Modular Values and Weak Values of Quantum Observables
Modular Values and Weak Values of Quantum Observables
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DOI：
10.1103/physrevlett.105.230401
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发表时间：
2010-11-30
影响因子：
8.6
通讯作者：
Vaidman, L.
中科院分区：
文献类型：
--
作者：
Kedem, Y.;Vaidman, L.
引入了预选和后选量子系统的可观测量的模值的概念。它在形式上类似，在某些情况下与可观测的弱值有密切联系，但它描述的不是耦合弱时的有效相互作用，而是任何强度的耦合，但仅限于量子比特米。将复合系统耦合到多量子位计的概念的推广为当前的一些实验提供了解释。
The concept of a modular value of an observable of a pre- and postselected quantum system is introduced. It is similar in form and in some cases has a close connection to the weak value of an observable, but instead of describing an effective interaction when the coupling is weak, it describes a coupling of any strength but only to qubit meters. The generalization of the concept for a coupling of a composite system to a multiqubit meter provides an explanation of some current experiments.