New Observational Bounds to Quantum Gravity Signals

Details New Observational Bounds to Quantum Gravity Signals New Observational Bounds to Quantum Gravity Signals

2002-04-05

arxiv.org/abs/gr-qc/0204027v2

Phys.Rev.Lett. 89 (2002) 231301

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Latex, to be published in PRL

Scientific paper

10.1103/PhysRevLett.89.231301

We consider a new set of effects arising from the quantum gravity corrections to the propagation of fields, associated with fluctuations of the spacetime geometry. Using already existing experimental data, we can put bounds on these effects that are more stringent by several orders of magnitude than those expected to be obtained in astrophysical observations. In fact these results can be already interpreted as questioning the whole scenario of linear (in $l_P$) corrections to the dispersion relations for free fields in Lorentz violating theories.

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