论文标题
时空边界的能量
Energy of boundary of spacetime
论文作者
论文摘要
我们考虑如何将能量存储在时空的边界中，尤其是在可以通过量子引力过程制成的球形气泡中。我们的计算是在经典爱因斯坦重力框架内进行的，它是通过将长臂猿的术语确定为膜作用的。我们表明，可以用Schwarzschild指标始终如一地给出气泡的能量。一致性条件的解决方案表明了正膜张力，这解释了为什么我们不在普通经验中观察到这种拓扑缺陷，并且还提供了一种以动态方式抑制时空的机制。
We consider how the energy can be stored in the boundary of spacetime, in particular in a spherical bubble that can be made by a quantum gravitational process. Our calculation is performed within the framework of classical Einstein gravity by identifying the Gibbons-Hawking-York term as the membrane action. We show that the energy of the bubble can be given consistently with the Schwarzschild metric. The solution of the consistency condition suggests positive membrane tension, which explains why we do not observe such topological defects in ordinary experiences and also gives a mechanism for suppressing the spacetime with boundary in a dynamical way.
