A Way to Dynamically Overcome the Cosmological Constant Problem

Details A Way to Dynamically Overcome the Cosmological Constant Problem A Way to Dynamically Overcome the Cosmological Constant Problem

2007-04-13

arxiv.org/abs/0704.1802v1

Int.J.Mod.Phys.A23:4133-4143,2008

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages

Scientific paper

10.1142/S0217751X08041359

The Cosmological Constant problem can be solved once we require that the full standard Einstein Hilbert lagrangian, gravity plus matter, is multiplied by a total derivative. We analyze such a picture writing the total derivative as the covariant gradient of a new vector field (b_mu). The dynamics of this b_mu field can play a key role in the explanation of the present cosmological acceleration of the Universe.

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