Dark Energy, with Signatures

Details Dark Energy, with Signatures Dark Energy, with Signatures

2010-05-17

arxiv.org/abs/1005.3038v1

Int.J.Mod.Phys.D19:2325-2330,2010

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

12 pages, 4 figures. Selected for Honorable Mention in the 2010 Gravity Research Foundation Essay awards

Scientific paper

10.1142/S0218271810018372

We propose a class of simple dark energy models which predict a late-time dark radiation component and a distinctive time-dependent equation of state $w(z)$ for redshift $z < 3$. The dark energy field can be coupled strongly enough to Standard Model particles to be detected in colliders, and the model requires only modest additional particle content and little or no fine-tuning other than a new energy scale of order milli-electron volts.

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