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arXiv 1102.1682gr-qcastro-ph.COhep-th
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Schwarzschild黑洞的量子化:Noether对称性方法

Quantization of the Schwarzschild black hole: a Noether symmetry approach

Babak Vakili

摘要:

研究了球对称时空的正则形式。在关于径向坐标$r$的3+1分解的上下文中,我们建立了一个有效的拉格朗日量,其中一对度量函数起独立变量的作用。我们表明,由此产生的$r$ -哈密顿量产生正确的经典解决方案,可以确定与史瓦西黑洞。然后利用相应的拉格朗日量在所需对称性的无穷小生成元下的行为来研究模型的Noether对称性。根据Noether对称性的方法,我们还证明了该模型,并表明,Noether对称性的存在产生的惠勒-德威特方程的一般解决方案,表现出良好的相关性与经典政权。我们使用由此产生的波函数,以(定性)调查的可能性,避免经典奇点。

英文摘要:

We study the canonical formalism of a spherically symmetric space-time. In the context of the 3+1 decomposition with respect to the radial coordinate $r$, we set up an effective Lagrangian in which a couple of metric functions play the role of independent variables. We show that the resulting $r$-Hamiltonian yields the correct classical solutions which can be identified with the Schwarzschild black hole. The Noether symmetry of model is then investigated by utilizing the behavior of the corresponding Lagrangian under the infinitesimal generators of the desired symmetry. According to the Noether symmetry approach, we also quantize the model and show that the existence of a Noether symmetry yields a general solution to the Wheeler-DeWitt equation where exhibits a good correlation with the classical regime. We use the resulting wave function in order to (qualitative) investigate the possibility of the avoidance of classical singularities.

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