Cosmological solutions of time varying speed of light theories
arXiv:0901.3191 · doi:10.1016/j.physletb.2009.01.042
Abstract
We consider scalar-tensor theory for describing varying speed of light in a spatially flat FRW space-time. We find some exact solutions in the metric and Palatini formalisms. Also we examine the dynamics of this theory by dynamical system method assuming a CDM background and we find some exact solutions by considering the character of critical points of the theory in both formalisms. We show that for any attractor the form of non-minimal coupling coefficient is quadratic in terms of the scalar field . Also we show that only attractors of the de Sitter era satisfy the horizon criteria.
16 pages, final version accepted for publication in Physics Letters B
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Cited by in corpus (7)
- Energy-Momentum Squared Gravity
- The minimally extended Varying Speed of Light (meVSL)
- Variable Speed of Light Cosmology, Primordial Fluctuations and Gravitational Waves
- A viable varying speed of light model in the RW metric
- Cosmography of the minimally extended Varying Speed of Light Model
- Perturbation Theory in the Minimally Extended Varying Speed of Light (meVSL) Model
- f(R) cosmological solutions with varying speed of light