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Deriving spacetime from first principles
Article first published online: 23 FEB 2010
Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Annalen der Physik
Volume 19, Issue 3-5, pages 186–195, April 2010
How to Cite
Ambjørn, J., Jurkiewicz, J. and Loll, R. (2010), Deriving spacetime from first principles. Ann. Phys., 19: 186–195. doi: 10.1002/andp.201010414
- Issue published online: 25 MAR 2010
- Article first published online: 23 FEB 2010
- Manuscript Accepted: 4 JAN 2010
- Manuscript Received: 15 NOV 2009
- Nonperturbative quantum gravity;
- quantum spacetime;
- lattice gravity.
Causal Dynamical Triangulation is a back-to-basics approach to nonperturbative, background-independent quantum gravity, which relies on few ingredients and initial assumptions, has few free parameters and – crucially – is amenable to numerical simulations. After putting the approach in context, we briefly describe its set-up and highlight some of its major, and sometimes unexpected findings. Prominent among them is the dynamical generation of a classical de Sitter universe from Planckian quantum fluctuations.