标题： 评论“通过非侵入性弱测量观察‘量子柴郡猫’效应” 显示英文标题

标题： Comment on "Observing the "quantum Cheshire cat" effect with noninvasive weak measurement''

摘要： 在一项最近的工作[arXiv:2004.07451]中，Kim等人声称首次实现了对量子切斯特猫效应的真正实验观察。 我们对此说法提出异议，理由是所采用的装置不足以进行定义这种干涉效应的弱测量。 必要弱值的一半未被观测到，而另一半则是通过结合不同装置测得的结果间接获得的。 显示英文摘要

摘要： In a very recent work [arXiv:2004.07451], Kim et al claimed to have made the first genuine experimental observation of the Quantum Cheshire Cat effect. We dispute this claim on the ground that the setup employed is not adequate for making the weak measurements that define this interferometric effect. Half of the necessary weak values are not observed, and the other half is obtained indirectly by combining results measured with distinct setups.