Runaway dilaton and equivalence principle violations

Preprint

29 August 2002

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.gr-qc/0204094

Abstract

In a recently proposed scenario, where the dilaton decouples while cosmologically attracted towards infinite bare string coupling, its residual interactions can be related to the amplitude of density fluctuations generated during inflation, and are large enough to be detectable through a modest improvement on present tests of free-fall universality. Provided it has significant couplings to either dark matter or dark energy, a runaway dilaton can also induce time-variations of the natural "constants" within the reach of near-future experiments.

Keywords

EQUIVALENCE PRINCIPLE
PRINCIPLE VIOLATIONS
PROPOSED SCENARIO
DILATON DECOUPLES
RUNAWAY DILATON
DARK MATTER
DARK ENERGY
INFLATION

All Related Versions

Version 1, 2002-04-30, ArXiv
Version 2, 2002-08-29, ArXiv
Published version: Physical Review Letters, 89 (8), 081601.

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