Abstract Quantum Cheshire cats represent the violation of the product rule in terms of weak values being either 0 or 1. We explore the generalized fatter quantum Cheshire cats living in the larger Hilbert spaces. Specifically, two even-dimensional quantum systems are exploited. As for the physical implications, given that no disturbance is made in the weak measurements, quantum Cheshire cats reveal an alternative way of defying EPR elements of reality. In addition, we discuss the inconsistency between the Wigner's friend problem and quantum Cheshire cats.

中文翻译：

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量子柴郡猫及其现实元素

摘要 量子柴郡猫代表违反乘积规则的弱值为 0 或 1。我们探索生活在较大希尔伯特空间中的广义更胖量子柴郡猫。具体来说，利用了两个偶数维量子系统。至于物理意义，鉴于弱测量中没有干扰，量子柴郡猫揭示了一种对抗现实 EPR 元素的替代方式。此外，我们讨论了 Wigner 的朋友问题和量子柴郡猫之间的不一致。