Variable-Speed-of-Light Cosmology and Second Law of Thermodynamics

Abstract

We examine whether the cosmologies with varying speed of light (VSL) are compatible with the second law of thermodynamics. We find that the VSL cosmology with varying fundamental constant is severely constrained by the second law of thermodynamics, whereas the bimetric cosmological models are less constrained.

15 pages, LaTeX, Revised version with minor corrections to appear in Phys. Rev. D

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Cited by in corpus (7)

• New varying speed of light theories
• Statistical hierarchy of varying speed of light cosmologies
• A statefinder luminosity distance formula in varying speed of light cosmology
• Varying constants entropic--$\Lambda$CDM cosmology
• Cyclic multiverses
• 2d Stringy Black Holes and Varying Constants
• Varying Fine Structure Constant and Black Hole Physics