Solving the cosmological constant problem by embedding

Details Solving the cosmological constant problem by embedding Solving the cosmological constant problem by embedding

2009-10-27

arxiv.org/abs/0910.5074v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages

Scientific paper

The typical scalar field theory has a cosmological constant problem. We propose a generic mechanism by which this problem is avoided by embedding the theory into a larger theory. The metric and the scalar field coupling constants in the original theory do not need to be fine-tuned, while the extra scalar field parameters and the metric associated with the extended theory are fine-tuned dynamically. Hence, no fine-tuning of parameters in the full Lagrangian is needed for the vacuum energy in the new physical system to vanish.

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