AI 中文总结
研究基于扩展维格纳朋友场景的不可行定理中量子理论与局部友好性的矛盾,批判性评估阿德拉姆借助量子参考系的解决方案,指出其依赖的修改有误,结论是标准量子理论内量子参考系无法规避相关不可行定理。
AI 中文摘要
近期基于扩展维格纳朋友场景(EWFS)的不可行定理揭示了量子理论的普遍有效性与局部友好性(LF)之间的深刻矛盾,LF是观察事件的绝对性、局域性和无超决定论这三个自然假设的结合。在近期一项工作中,阿德拉姆认为这种矛盾可通过诉诸量子参考系(QRFs)来解决。我们展示并批判性评估了她的提议。我们表明她提出的解决方案并非源于QRFs,而是依赖于三个独立的修改:某些自由度总是确定的,观察者在测量自旋时可以翻转,超级观察者记录并用于测试不等式的结果不是其朋友观察到的结果。该提议及其关于这些修改合理性的论证基于对QRFs和EWFS的一些误解,我们对此进行了纠正。我们得出结论,在标准量子理论内,量子参考系无法规避EWFS不可行定理。
英文摘要
Recent no-go theorems based on extended Wigner's Friend scenarios (EWFS) reveal a deep tension between the universal validity of quantum theory and local friendliness (LF), the conjunction of three natural assumptions: the absoluteness of observed events, locality, and no-superdeterminism. In a recent work, Adlam argues that this tension can be dissolved by appealing to quantum reference frames (QRFs). We present and critically assess her proposal. We show that her proposed resolution does not arise from QRFs, but instead relies on three independent modifications: certain degrees of freedom are always definite, observers can flip upon measuring spins, and the outcomes the superobservers record and use to test the inequalities are not their friends' observed results. The proposal and the arguments for the plausibility of these modifications rest on several misconceptions about QRFs and EWFS, which we rectify. We conclude that, within standard quantum theory, quantum reference frames do not evade the EWFS no-go theorems.
Comments13+5 pages