Quantum non-gravity and stellar collapse



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Barceló, Carlos and Garay Elizondo, Luis Javier and Jannes, Gil (2011) Quantum non-gravity and stellar collapse. Foundations of physics, 41 (9). pp. 1532-15. ISSN 0015-9018

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Official URL: http://dx.doi.org/10.1007/s10701-011-9577-9


Observational indications combined with analyses of analogue and emergent gravity in condensed matter systems support the possibility that there might be two distinct energy scales related to quantum gravity: the scale that sets the onset of quantum gravitational effects E-B ( related to the Planck scale) and the much higher scale E-L signalling the breaking of Lorentz symmetry. We suggest a natural interpretation for these two scales: E-L is the energy scale below which a special relativistic spacetime emerges, E-B is the scale below which this spacetime geometry becomes curved. This implies that the first 'quantum' gravitational effect around E-B could simply be that gravity is progressively switched off, leaving an effective Minkowski quantum field theory up to much higher energies of the order of E-L. This scenario may have important consequences for gravitational collapse, inasmuch as it opens up new possibilities for the final state of stellar collapse other than an evaporating black hole.

Item Type:Article
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© Springer.
Financial support was provided by the Spanish MICINN through the projects FIS2008-06078- C03-01 and FIS2008-06078-C03-03 and by Junta de Andalucía through the projects FQM2288 and FQM219. The authors want to thank J.L. Jaramillo, S. Liberati, S. Sonego and M. Visser for some illuminating discussions.

Uncontrolled Keywords:Physics, multidisciplinary
Subjects:Sciences > Physics > Physics-Mathematical models
Sciences > Physics > Mathematical physics
ID Code:29691
Deposited On:24 Apr 2015 09:45
Last Modified:10 Dec 2018 15:09

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