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Berlin 2005 – wissenschaftliches Programm

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MP: Theoretische und Mathematische Grundlagen der Physik

MP 8: Quantum Gravity

MP 8.4: Fachvortrag

Mittwoch, 9. März 2005, 15:00–15:20, TU MA043

Singularities of General Relativity in the Framework of Loop Quantum Gravity — •Johannes Brunnemann — Max Planck Institut fuer Gravitationsphysik, Am Muehlenberg 1, D-14476 Golm

A quantum theory of gravity is expected to solve one of the main problems of General Relativity: the occurrence of singularities, such as the big bang.

Recently, remarkable progress has been made in understanding symmetry reduced cosmological models within the program of Loop Quantum Cosmology (LQC), leading to striking results like the absence of a big bang singularity in these quantum-cosmologies .

One might worry, however, that the performed symmetry reductions could be too restrictive and therefore one should look at the full theory of Loop Quantum Gravity (LQG) in order to check the obtained results.

In this talk I will give an overview of what can be said about the (dis)appearance of classical singularities within the full theory, LQG, and show possible connections to the results within LQC .

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