Is the Big Rip unreachable?

Abstract

I investigate the repercussions of particle production when the Universe is dominated by a hypothetical phantom substance. I show that backreaction due to particle production prevents the density from shooting to infinity at a Big Rip, but instead forces it to stabilise at a large constant value. Afterwards there is a period of de-Sitter inflation. I speculate that this might lead to a cyclic Universe.

9 pages, 2 figures. Published version

References in corpus (3)

• The oscillating dark energy: future singularity and coincidence problem
• Effects of Quantized Scalar Fields in Cosmological Spacetimes with Big Rip Singularities
• Topics in Quantum Field Theory in Curved Space

Cited by in corpus (5)

• Cosmological Particle Production: A Review
• Big Bounce cosmology for Palatini $R^2$ gravity with a Nieh-Yan term
• Big-bounce and future time singularity resolution in Bianchi I: the projective invariant Nieh-Yan case
• Challenging matter creation models in the phantom divide
• Modeling holographic dark energy with particle and future horizons