Unified model for inflation and dark energy

Details Unified model for inflation and dark energy Unified model for inflation and dark energy

2007-01-12

arxiv.org/abs/astro-ph/0701370v1

AIPConf.Proc.878:305-311,2006; J.Phys.A40:7081-7086,2007

Astronomy and Astrophysics

Astrophysics

To appear in the proceedings of 2nd International Conference on Quantum Theories and Renormalization Group in Gravity and Cosm

Scientific paper

10.1063/1.2409102 10.1088/1751-8

We present a model based on the idea that Planck-scale effects may produce a small explicit breaking of global symmetries. The model contains a new complex scalar field $\Psi$, charged under a certain global U(1) symmetry, interacting with a new real scalar field $\chi$, neutral under U(1). For exponentially small breaking, the model accounts for both {\em early} and {\em late} periods of acceleration of the universe.

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