Brane singularities with mixtures in the bulk

Abstract

By extending previous analysis of the authors, a systematic study of the singularity structure and possible asymptotic behaviors of five-dimensional braneworld solutions is performed in the case where the bulk is a mixture of an analog of perfect fluid (with a density and pressure depending on the extra coordinate) and a massless scalar field. The two bulk components interact by exchanging energy so that the total energy is conserved. In a particular range of the interaction parameters, we find flat brane general solutions avoiding the singularity at finite distance from the brane, in the same region of the equation of state constant parameter $\gamma =P/\rho$ that we found previously in the absence of the bulk scalar field $(-1<\gamma <-1/2)$.

48 pages

References in corpus (8)

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Cited by in corpus (11)

• Recent advances in cosmological singularities
• Infinity in string cosmology: A review through open problems
• The initial state of generalized radiation universes
• On finite time singularities in scalar field dark energy models based in the RS-II Braneworld
• Curved branes with regular support
• Regular braneworlds with nonlinear bulk-fluids
• Asymptotic Poincaré compactification and finite-time singularities
• Cosmological singularities in non-canonical models of dark energy
• General self-tuning solutions and no-go theorem
• Ambient cosmology and spacetime singularities
• Tuning the Cosmological Constant, Broken Scale Invariance, Unitarity