Cosmological k-essence condensation

Details Cosmological k-essence condensation Cosmological k-essence condensation

2010-04-19

arxiv.org/abs/1004.3141v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 2 figures, presented by NB at the conference Beyond 2010, Cape Town, 1-6 February 2010

Scientific paper

We consider a model of dark energy/matter unification based on a k-essence type of theory similar to tachyon condensate models. Using an extension of the general relativistic spherical model which incorporates the effects of both pressure and the acoustic horizon we show that an initially perturbative k-essence fluid evolves into a mixed system containing cold dark matter like gravitational condensate in significant quantities.

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