2000/01/27 by Stefano Liberati, Bruce A. Bassett, Carmen Molina-Paris +2
Mathematics · Physics and Astronomy · #Astrophysics #Black Holes and Theoretical Physics #Classical mechanics #Computer science #Consistency (knowledge bases) #Cosmology #Cosmology and Gravitation Theories #Einstein #Flatness (cosmology) #Galaxies: Formation, Evolution, Phenomena #Implementation #Inflation (cosmology) #Kinematics #Mathematical analysis #Mathematics #Physics #Quantum mechanics #Speed of light (cellular automaton) #Theoretical physics #Variable (mathematics) #astro-ph
paper · pdf · doi:10.1016/s0920-5632(00)00780-5
published as Nucl.Phys.Proc.Suppl. 88 (2000) 259-262 · 4 pages, use esprc2.sty. Talk given at the 3rd Meeting on Constrained Dynamics and Quantum Gravity (QG 99), Villasimius, Sardinia, Italy, 14-18 Sep 1999
arxiv created 2000/01/27 · openalex publication_date 2000/06/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Variable-Speed-of-Light (VSL) cosmologies are currently attracting much interest as a possible alternative to cosmological inflation. We discuss the fundamental geometrodynamic aspects of VSL cosmologies, and provide several alternative implementations. These implementations provide a large class of VSL cosmologies that pass the zeroth-order consistency tests of being compatible with both classical Einstein gravity and low-energy particle physics. While they solve the ``kinematic'' puzzles as well as inflation does, VSL cosmologies typically do not solve the flatness problem since in their purest form no violation of the strong energy condition occurs. Nevertheless, these models are easy to unify with inflation.