双缝实验与时间反转火灾报警器
The double slit experiment and the time reversed fire alarm
摘要：
当双缝实验的两条缝都打开时，关闭一条缝反而会增加检测屏上某些点的检测率。费曼有一个著名的警告，“理解”这样一个令人费解的特征的诱惑只会把我们引入死胡同。尽管如此，我们通过在双缝实验和时间反转的火灾报警器之间进行类比来深入了解这一特征。就像关闭狭缝增加了未来检测的可能性，排除了消防演习场景，听到火灾警报，增加了过去火灾的可能性（使用贝叶斯推断）。传统上，贝叶斯推断与计算过去事件的概率相关联。因此，我们用时间反演的热力学箭头来确定双缝实验的这一特征。我们相信，量子力学的大部分谜团仅仅是由于时间箭头的某种变化。为了进一步支持这一点，我们采用了一个合理的制定热力学箭头推导出一个不确定性，在经典力学，这是让人想起量子不确定性。
英文摘要：
When both slits of the double slit experiment are open, closing one paradoxically increases the detection rate at some points on the detection screen. Feynman famously warned that temptation to "understand" such a puzzling feature only draws us into blind alleys. Nevertheless, we gain insight into this feature by drawing an analogy between the double slit experiment and a time reversed fire alarm. Much as closing the slit increases probability of a future detection, ruling out fire drill scenarios, having heard the fire alarm, increases probability of a past fire (using Bayesian inference). Classically, Bayesian inference is associated with computing probabilities of past events. We therefore identify this feature of the double slit experiment with a time reversed thermodynamic arrow. We believe that much of the enigma of quantum mechanics is simply due to some variation of time's arrow. In further support of this, we employ a plausible formulation of the thermodynamic arrow to derive an uncertainty in classical mechanics that is reminiscent of quantum uncertainty.
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