Time delay of light signals in an energy-dependent spacetime metric

Details Time delay of light signals in an energy-dependent spacetime metric Time delay of light signals in an energy-dependent spacetime metric

2008-08-16

arxiv.org/abs/0808.2259v1

Phys.Rev.D77:104033,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages. This version contains two new references with respect to the published version

Scientific paper

10.1103/PhysRevD.77.104033

In this note we review the problem of time delay of photons propagating in a spacetime with a metric that explicitly depends on the energy of the particles (Gravity-Rainbow approach). We show that corrections due to this approach -- which is closely related to DSR proposal -- produce for small redshifts ($z<<1$) smaller time delays than in the generic Lorentz Invariance Violating case.

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