Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2010-07-06
Int.J.Mod.Phys.D19:2385-2392,2010
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
This essay received honorable mention in the Gravity Research Foundation 2010 Awards for Essays on Gravitation
Scientific paper
10.1142/S0218271810018451
The literature on quantum-gravity-inspired scenarios for the quantization of spacetime has so far focused on particle-physics-like studies. This is partly justified by the present limitations of our understanding of quantum-gravity theories, but we here argue that valuable insight can be gained through semi-heuristic analyses of the implications for gravitational phenomena of some results obtained in the quantum-spacetime literature. In particular, we show that the types of description of particle propagation that emerged in certain quantum-spacetime frameworks have striking implications for gravitational collapse and for the behaviour of gravity at large distances.
Amelino-Camelia Giovanni
Loret Niccolo'
Mandanici Gianluca
Mercati Flavio
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