We use a simple example to illustrate why it is not possible to consider that a measurement reveals an underlying objective reality of a property of a quantum system that continues the same after the measurement is performed. This kind of incompatibility between realism and quantum mechanics is theoretically demonstrated with an example where sequential spin measurements are performed on a spin-2 quantum particle. We discuss the relation of this result with other works that investigate the concept of reality in quantum mechanics.

中文翻译：

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量子测量的现实解释的不一致：一个简单的例子

我们使用一个简单的例子来说明为什么不能认为测量揭示了量子系统属性的潜在客观现实，该属性在执行测量后继续相同。现实主义和量子力学之间的这种不兼容性通过一个例子在理论上证明了，其中在自旋 2 量子粒子上执行顺序自旋测量。我们讨论了这个结果与其他研究量子力学中现实概念的作品的关系。