Phys. Rev. Lett. 89, 231301 (2002) [4 pages]Observational Bounds on Quantum Gravity Signals using Existing DataReceived 5 April 2002; published 14 November 2002 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 already be interpreted as questioning the whole scenario of linear (in ℓP) corrections to the dispersion relations for free fields in Lorentz violating theories. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.89.231301
DOI:
10.1103/PhysRevLett.89.231301
PACS:
04.60.Ds, 04.80.–y, 11.30.Cp
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