论文标题
量子理论操作公式的时间箭头
The arrow of time in operational formulations of quantum theory
论文作者
论文摘要
量子理论的操作公式急剧定向。但是，据我们所知，微观物理是时间对称。我们通过表明操作配方的不对称性并不能反映物理学的基本时间方向来解决这种紧张。取而代之的是，它源于对该理论的$用户$的内置假设。特别是，这些形式主义旨在根据有关过去的信息来预测未来，而主要的数学对象包含关于过去的隐含假设，但对未来不包含。量子理论中的主要不对称性是已知和未知数之间的差异。
The operational formulations of quantum theory are drastically time oriented. However, to the best of our knowledge, microscopic physics is time-symmetric. We address this tension by showing that the asymmetry of the operational formulations does not reflect a fundamental time-orientation of physics. Instead, it stems from built-in assumptions about the $users$ of the theory. In particular, these formalisms are designed for predicting the future based on information about the past, and the main mathematical objects contain implicit assumption about the past, but not about the future. The main asymmetry in quantum theory is the difference between knowns and unknowns.
