2006/01/31 by Luz Maria Diaz-Rivera, L. M. Díaz-Rivera, Lado Samushia +1 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Solar and Space Plasma Dynamics #astro-ph #gr-qc
paper · pdf · doi:10.1103/physrevd.73.083503
published as Physical Review D, vol. 73, Issue 8, id. 083503, (2006) · Revised version, Phys.Rev.D in press
arxiv created 2006/03/19 · openalex publication_date 2006/04/03 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We find exact exponentially expanding and contracting de Sitter solutions of the spatially homogeneous TeVeS cosmological equations of motion in the vacuum TeVeS model and a power law accelerated expanding solution in the presence of an additional ideal fluid with equation of state parameter \ensuremath-5/3<\ensuremathω<\ensuremath-1. A preliminary stability analysis shows that the expanding vacuum solution is stable, while in the ideal fluid case stability depends on model parameter values. These solutions might provide a basis for incorporating early-time inflation or late-time accelerated expansion in TeVeS cosmology.