论文标题
熵时间的概念：初步讨论
The Concept of Entropic Time: A Preliminary Discussion
论文作者
论文摘要
熵和信息之间的深层联系是根据经典物理和量子物理学讨论的。在变质理论的背景下，探索了系统之间通过纠缠之间的信息传递的机理。然后根据信息获取引入熵时间的概念，这被认为是不可逆转的，并且与第二种热力学定律和我们对时间的心理学感知都一致。这与参数时间的概念区分开来，这是在非相关量子力学中物理状态的单一演变的时间参数。根据相对论的考虑，讨论了与此类信息增益相关的状态媒介的“崩溃”的特质。还讨论了根据主观和客观崩溃模型对这些思想的解释。结果表明，在主观崩溃方案下，能量是保守的，而通常，在客观崩溃下，能量不是。这与后者本质上是非独立的事实，而节能首先是由于时间对称性而产生的。
The deep connection between entropy and information is discussed in terms of both classical and quantum physics. The mechanism of information transfer between systems via entanglement is explored in the context of decoherence theory. The concept of entropic time is then introduced on the basis of information acquisition, which is argued to be effectively irreversible and consistent with both the Second Law of Thermodynamics and our psychological perception of time. This is distinguished from the notion of parametric time, which serves as the temporal parameter for the unitary evolution of a physical state in non-relativistic quantum mechanics. The atemporal nature of the `collapse' of the state vector associated with such information gain is discussed in light of relativistic considerations. The interpretation of these ideas in terms of both subjective and objective collapse models is also discussed. It is shown that energy is conserved under subjective collapse schemes whereas, in general, under objective collapse it is not. This is consistent with the fact that the latter is inherently non-unitary and that energy conservation arises out of time symmetry in the first place.
