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Vector models for dark energy · Around

2008

Vector models for dark energy

Jimenez, Jose Beltran, Maroto, Antonio L.

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We explore the possibility that the present stage of accelerated expansion of the universe is due to the presence of a cosmic vector field.

We show that vector theories allow for the generation of an accelerated phase without the introduction of potential terms or unnatural scales in the Lagrangian.
We propose a particular model with the same number of parameters as LCDM and excellent fits to SNIa data.
The model is scaling during radiation era, with natural initial conditions, thus avoiding the cosmic coincidence problem.

Built on

C. Will, Theory and experiment in gravitational physics
1993
Earlier work this paper cites.
V.V. Kiselev, Class. Quant. Grav
Original
2004
Earlier work this paper cites.
A.G. Riess at al. Astrophys.J
2004
Earlier work this paper cites.

Similar

R. Lazkoz, S. Nesseris, L. Perivolaropoulos, JCAP
2005
Cited alongside, same era.
E.J. Copeland, M. Sami and S. Tsujikawa, Int. J. Mod. Phys. D
2006
Cited alongside, same era.
P. Astier et al., Astron. Astrophys
2006
Cited alongside, same era.
J. Beltrán-Jiménez and A.L. Maroto, arXiv:0801.1486 [astro-ph]
Original
Cited in the paper.

Then

R. Trotta and R. Bower, Astron. Geophys
2006
Later among the works it cites.
S. Nesseris and L. Perivolaropoulos, JCAP
2007
Later among the works it cites.
E. Babichev, V. Mukhanov and A. Vikman, JHEP 0802
2008
Closest in time.

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