Holography constrains quantum bounce

Abstract

Recent work in quantum loop cosmology suggests the universe undergoes a bounce when evolving from a previous collapsing phase. However, with non-inflationary matter sources, the scenario appears to strongly violate the holography bound S\leq A/4 during the bounce, where A now represents the cross-sectional area of the bounce. We also give a simple argument why any inflationary phase after the bounce is unlikely due to prior dissipation of a scalar field kinetic energy phase into regular matter components.

updated version

References in corpus (3)

• Robustness of key features of loop quantum cosmology
• On initial conditions for inflationary and bouncing cosmologies
• Causality and Unitarity Are Not Violated in Space-Times with an Additional Compact Time-like Dimension

Cited by in corpus (1)

• Initial Conditions for Bubble Universes