Lorentz-violating dynamics in the pre-Planckian Universe

Details Lorentz-violating dynamics in the pre-Planckian Universe Lorentz-violating dynamics in the pre-Planckian Universe

2011-10-10

arxiv.org/abs/1110.2234v1

Phys. Rev. D 85, 063502 (2012)

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages

Scientific paper

10.1103/PhysRevD.85.063502

We have recently proposed a Lorentz-violating energy-momentum relation entailing an exact momentum cutoff and studied various physical applications of that dispersion law. By a simple phenomenological approach we here study Lorentz violation effects on early Universe and pre-Planckian cosmological radiation. In particular, we predict an effective infinite speed of light soon after the Big Bang instant, leading to a straightforward solution of the horizon and flatness problems without recourse to inflation, cosmological scalar fields or other ad hoc energy sources.

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