RT Journal Article
T1 Quantum non-gravity and stellar collapse
A1 Barceló, Carlos
A1 Garay Elizondo, Luis Javier
A1 Jannes, Gil
AB 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.
PB Springer
SN 0015-9018
YR 2011
FD 2011-09
LK https://hdl.handle.net/20.500.14352/44517
UL https://hdl.handle.net/20.500.14352/44517
LA spa
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NO © 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.
NO Spanish MICINN
NO Junta de Andalucia
DS Docta Complutense
RD 4 may 2024