Quantum Gravity and the Big Bang

Details Quantum Gravity and the Big Bang Quantum Gravity and the Big Bang

2003-09-17

arxiv.org/abs/astro-ph/0309478v1

Astronomy and Astrophysics

Astrophysics

6 pages, invited talk at the conference "Where Cosmology and Fundamental Physics Meet" at IUFM, Marseille, June 23 - 26, 2003

Scientific paper

Quantum gravity has matured over the last decade to a theory which can tell in a precise and explicit way how cosmological singularities of general relativity are removed. A branch of the universe "before" the classical big bang is obtained which is connected to ours by quantum evolution through a region around the singularity where the classical space-time dissolves. We discuss the basic mechanism as well as applications ranging to new phenomenological scenarios of the early universe expansion, such as an inflationary period.

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