论文标题
威格纳（Wigner）的朋友
Wigner's convoluted friends
论文作者
论文摘要
考虑到Wigner的朋友场景的复杂扩展，据称Frauchiger和Renner（FR）表明“量子理论不能一致地描述自己的使用”。但是，这种结果受到严重的批评，因为它令人信服地说，至关重要的是关于崩溃机制细节的隐式，非平凡的假设。因此，结果不像预期的那样坚固或一般。最重要的是，在这项工作中，我们表明了一个更简单的布置（基本上是EPR设置），足以得出与FR完全类似的结果。此外，我们声称从FR的结果中学到的所有经验教训本质上都包含在原始EPR论文中。我们得出的结论是，FR的结果没有提供对量子理论概念问题的任何新颖见解。
Considering a complicated extension of a Wigner's friend scenario, Frauchiger and Renner (FR) allegedly showed that "quantum theory cannot consistently describe the use of itself". However, such a result has been under severe criticism, as it has been convincingly argued to crucially depend on an implicit, non-trivial assumption regarding details of the collapse mechanism. In consequence, the result is not as robust or general as intended. On top of all this, in this work we show that a much simpler arrangement--basically an EPR setting--is sufficient to derive a result fully analogous to that of FR. Moreover, we claim that all lessons learned from FR's result are essentially contained within the original EPR paper. We conclude that FR's result does not offer any novel insights into the conceptual problems of quantum theory.
