Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2008-04-08
PoSQG-Ph:044,2007
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
19 pages; Based on a talk at the conference: From Quantum to Emergent Gravity: Theory and Phenomenology, June 11-15 2007, Trie
Scientific paper
We present a toy model where spacetime is emergent from a more fundamental microscopic system, and investigate the gray area interpolating between the collective and free-particle regimes. For a period of rapid exponential growth in the analogue universe, we argue that the intermediate regime is best described by a coloured potpourri of geometries -- a "rainbow geometry". This can be viewed as an alternative approach towards understanding quantum field theories in the presence of Lorentz-symmetry breaking at ultraviolet scales. Firstly, it is pointed out that cosmological particle production in our emergent FRW-type analogue universe, when compared to conventional semi-classical quantum gravity, is only temporarily robust against model-specific deviations from Lorentz invariance. Secondly, it is possible to carry out a straightforward quantitative analysis to estimate a suitable parameter regime for experimental (analogue) cosmology.
Gardiner C. W.
Jain Piyush
Visser Matt
Weinfurtner Silke
No associations
LandOfFree
On the phenomenon of emergent spacetimes: An instruction guide for experimental cosmology does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with On the phenomenon of emergent spacetimes: An instruction guide for experimental cosmology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and On the phenomenon of emergent spacetimes: An instruction guide for experimental cosmology will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-541422