Spontaneous Broken Local Conformal Symmetry and Dark Energy Candidate

Details Spontaneous Broken Local Conformal Symmetry and Dark Energy Candidate Spontaneous Broken Local Conformal Symmetry and Dark Energy Candidate

2008-08-24

arxiv.org/abs/0808.3277v2

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, updated version, to appear in the proceedings of 6th International Symposium on Quantum Theory and Symmetries (QTS6),

Scientific paper

The local conformal symmetry is spontaneously broken down to the Local Lorentz invariance symmetry through the approach of nonlinear realization. The resulting effective Lagrangian, in the unitary gauge, describes a cosmological vector field non-minimally coupling to the gravitational field. As a result of the Higgs mechanism, the vector field absorbs the dilaton and becomes massive, but with an independent energy scale. The Proca type vector field can be modelled as dark energy candidate. The possibility that it further triggers Lorentz symmetry violation is also pointed out.

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