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Dark energy as a Born-Infeld gauge interaction violating the equivalence principle.

Research paper by A A Füzfa, J-M JM Alimi

Indexed on: 10 Oct '06Published on: 10 Oct '06Published in: Physical review letters



Abstract

We investigate the possibility that dark energy does not couple to gravitation in the same way as ordinary matter, yielding a violation of the weak and strong equivalence principles on cosmological scales. We build a transient mechanism in which gravitation is pushed away from general relativity by a Born-Infeld gauge interaction acting as an abnormally weighting (dark) energy. This mechanism accounts for the Hubble diagram of far-away supernovae by cosmic acceleration and time variation of the gravitational constant while accounting naturally for the present tests on general relativity.