In 2018, Daniela Frauchiger and Renato Renner published an article in Nature Communications entitled ‘Quantum theory cannot consistently describe the use of itself.’ The argument has been attacked as flawed from a variety of interpretational perspectives. I clarify the significance of the result as a sequence of actions and inferences by agents modeled as quantum systems evolving unitarily at all times. At no point does the argument appeal to a ‘collapse’ of the quantum state following a measurement.

中文翻译：

---

了解Frauchiger-Renner的论点

在2018年，Daniela Frauchiger和Renato Renner在《自然通讯》上发表了一篇文章，题为``量子理论不能始终如一地描述其自身的用途''。从各种解释角度来看，该论据都被认为是有缺陷的。我阐明了结果的重要性，它是被建模为始终在不断演化的量子系统的主体所进行的一系列动作和推论的结果。该论点在任何时候都不会吸引量子态在测量之后的“崩溃”。