Spacetime Physics

物理学的一个核心问题一直不肯消失：大爆炸和黑洞中心引力崩塌时的时空会发生什么，这两个时间都超过了这两个时间--根据现在理解的物理学--没有时间了？目前的工作试图利用这一困难；将其转化为机会，赢得对物理学基础的新见解。这样做的工具将包括：(1)在J.W.York的初值公式中看到的几何的经典动力学，(2)在通常的WDW方程中看到的该动力学的量子版本，(3)量子测量理论，因为它告诉我们，关于预测的动力学，什么是有意义的，什么是不有意义的，以及(4)将问题和发现从比特数的信息理论语言翻译成信息理论语言。

A problem at the heart of physics persistently refuses to go away: What happens to spacetime at big bang and in the gravitational collapse at the center of a black hole, both of them times beyond which -- according to physics as now understood -- there is no time? The present work seeks to capitalize on this difficulty; to turn it into opportunity to win new insight into the foundations of physics. Tools to do this will include: (1) the classical dynamics of geometry as seen in the initial- value formulation of J. W. York, (2) the quantum version of this dynamics as seen in the usual WDW equation, (3) the quantum theory of measurement as it tells what about the predicted dynamics makes sense and what does not and (4) the translation of questions and findings from and into the information-theoretical language of bit counts.