Bojowald Martin
Max-Planck-Institut für Gravitationsphysik, Albert-Einstein-Institut, Am Mühlenberg 1, D-14476 Potsdam, Germany.
Phys Rev Lett. 2005 Aug 5;95(6):061301. doi: 10.1103/PhysRevLett.95.061301. Epub 2005 Aug 2.
Spherically symmetric space-times provide many examples for interesting black hole solutions, which classically are all singular. Following a general program, space-like singularities in spherically symmetric quantum geometry, as well as other inhomogeneous models, are shown to be absent. Moreover, one sees how the classical reduction from infinitely many kinematical degrees of freedom to only one physical one, the mass, can arise, where aspects of quantum cosmology such as the problem of initial conditions play a role.
球对称时空为有趣的黑洞解提供了许多例子，这些黑洞解在经典情况下都是奇异的。按照一个通用程序，球对称量子几何中的类空奇点以及其他非均匀模型中的类空奇点被证明是不存在的。此外，人们可以看到从无限多个运动学自由度到仅一个物理量（即质量）的经典约化是如何出现的，其中量子宇宙学的一些方面，如初始条件问题，起到了一定作用。
