Abstract

The quantum Cheshire cat is an effect demonstrated within the framework of weak measurement aided with post-selection scenario where the property (say, grin) of a quantum particle (the cat) can be found in a spatially separated location from its position. In this work, we first propose interesting variants of quantum Cheshire cat where disembodiment of two different properties of a "cat" is demonstrated, so that, the grin and the meowing of it can be found in two different paths on an interferometer while the cat is in another path. We further extend this proposal for three-qutrit and d-qudit systems of a single particle. We provide sketches of the experimental proposals for testing our scheme by using the path, spin and energy degrees of freedoms of a single neutron and the path, polarization and orbital angular momentum of a single photon.

Graphical abstract

中文翻译：

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量子柴郡猫实验中任意数量性质的实施

摘要

量子柴郡猫是在弱测量框架内得到证明的一种效应，这种选择借助后选择场景得以实现，在该场景中，可以在与其位置位置相距较远的位置找到量子粒子（猫）的特性（例如咧嘴笑）。在这项工作中，我们首先提出了量子柴郡猫的有趣变体，其中展示了“猫”的两种不同特性的体现，因此可以在干涉仪上的两条不同路径中找到它的笑容和猫叫声。在另一条道路上。我们将此提议进一步扩展为三重态和d单个粒子的Qudit系统。我们通过使用单个中子的路径，自旋和能量自由度以及单个光子的路径，极化和轨道角动量来提供实验方案的草图，以测试我们的方案。

图形概要