Bare and effective fluid description in brane world cosmology

2009/06/12 by Norman Cruz, Samuel Lepe, Francisco Peña-Benítez +2 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Brane #Brane cosmology #Classical mechanics #Cosmology #Cosmology and Gravitation Theories #Equation of state #Mathematical physics #Noncommutative and Quantum Gravity Theories #Omega #Perfect fluid #Physics #Quantum mechanics #Surface tension #Tension (geology) #Theoretical physics #Thermodynamics #astro-ph.CO #gr-qc #hep-th

paper · pdf · doi:10.1140/epjc/s10052-009-1226-5

published in The European Physical Journal C 66(1-2), 289-293 (Springer Science+Business Media) · 6 pages

arxiv created 2009/06/12 · openalex publication_date 2009/12/09 · arxiv updated 2014/11/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

An effective fluid description, for a brane world model in five dimensions, is discussed for both signs of the brane tension. We found several cosmological scenarios where the effective equation differs widely from the bare equation of state. For universes with negative brane tension, with a bare fluid satisfying the strong energy condition, the effective fluid can cross the barrier ω_eff =-1.

Citations

• Eleven-dimensional supergravity on a manifold with boundary
• Bouncing braneworlds go crunch!
• Large Mass Hierarchy from a Small Extra Dimension
• Heterotic and Type I string dynamics from eleven dimensions
• An Alternative to Compactification
• Loop Quantum Cosmology
• Bouncing braneworlds