真的有经典信息吗？
Is there truly classical information?
摘要：
所有的熵都是纠缠熵。这似乎是黑洞存在的结果。熵的起源和它在宏观系统中定义感知时间方向的方式已经讨论过了，只要忽略黑洞，就可以进行辩论。在这种情况下，热力学熵可以定义时间的箭头，并且纠缠熵定义了非局部意义上的某些特殊的全局定义的熵编码信息。然而，对于黑洞，如果我们接受这样一种观点，即下落的物体必须在外部编码它们的信息，例如通过远离霍金辐射热化的非局域波动，并且黑洞的视界切断了来自外部的所有经典信息，那么所有可以添加到黑洞的熵，基本上是任何形式的熵，必须转化为某种形式的纠缠熵才能在外面被检测到。对信息通道性质的讨论表明，时空可能不是量子计算工程中通常采用的相关不敏感通道。时间可能是纠缠传播的复杂性的一个属性。
英文摘要：
All entropy is entanglement entropy. This appears as the result of the existence of black holes. The origin of entropy and the way in which it defines the perceived time direction in macroscopic systems has been discussed and can be debated as long as one ignores black holes. In such a case, thermodynamic entropy may define the arrow of time and entanglement entropy defines some special globally defined entropy encoding information in a non-local sense. With black holes however, if we accept that in-falling objects must have their information encoded outside, for example through non-local fluctuations away from thermalisation of the Hawking radiation, and that the horizon of a black hole cuts all classical information from the outside, then all the entropy that can be added to the black hole, which is basically any form of entropy, must be translated into some form of entanglement entropy to be detected outside. A discussion about the nature of information channels shows that spacetime may not be a correlation-insensitive channel as usually employed in the engineering of quantum computing. Time may emerge as a property of the complexity of entanglement spreading.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
