Göttingen 2012 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

GR: Fachverband Gravitation und Relativitätstheorie

GR 15: Quantengravitation und Quantenkosmologie II

GR 15.6: Talk

Thursday, March 1, 2012, 18:25–18:45, ZHG 002

What happens inside a black hole? — •Thomas Görnitz — Goethe-Univ. Frankfurt/M

The interior solution for a black hole is normally understood as a problem of classical general relativity. Such a view is carried by the questionable notion that quantum theory is necessary only for very small space regions. Therefore it is often argued that for real black holes, which are much larger than the atoms, the use of quantum theory is superfluous for its description. A simple argument from quantum theory shows that such a concept may be incorrect, because a restriction of the spatial extent of a system - putting it into a box - results in a change of its ground state. The only really impenetrable boxes in the universe are the horizons of the black holes. Therefore it is unphysical to postulate inside of a black hole the same vacuum as outside. By avoiding this, the unphysical singularity in the centre of the black hole disappears, and the interior solution goes over into a Friedman-Robertson-Walker-cosmos. To show that, one has to work with the protyposis, abstract and absolute quantum bits, as the elementary entities of the universe. Doing this, also the entropy of the black holes does follow in a simple and straightforward way.