Vacuum Energy Sequestering: The Framework and Its Cosmological Consequences

Abstract

Recently we suggested a reformulation of General Relativity which completely sequesters from gravity {\it all} of the vacuum energy from a protected matter sector, assumed to contain the Standard Model. Here we elaborate further on the mechanism, presenting additional details of how it cancels all loop corrections and renders all contributions from phase transitions automatically small. We also consider cosmological consequences in more detail and show that the mechanism is consistent with a variety of inflationary models that make a universe big and old. We discuss in detail the underlying assumptions behind the dynamics of our proposal, and elaborate on the relationship of the physical interpretation of divergent operators in quantum field theory and the apparent `acausality' which our mechanism seems to entail, which we argue is completely harmless. It is merely a reflection of the fact that any UV sensitive quantity in quantum field theory cannot be calculated from first principles, but is an input whose numerical value must be measured. We also note that since the universe should be compact in spacetime, and so will collapse in the future, the current phase of acceleration with $w_{DE}\approx -1$ is just a transient. This could be tested by future cosmological observations.

39 pages LaTeX, 1 .pdf figure v3: a small correction, version published in PRD

References in corpus (12)

• Monodromy in the CMB: Gravity Waves and String Inflation
• A Natural Framework for Chaotic Inflation
• An Ignoble Approach to Large Field Inflation
• The Powers of Monodromy
• Sinks in the Landscape, Boltzmann Brains, and the Cosmological Constant Problem
• The Imaginary Starobinsky Model
• Chaotic Inflation in Supergravity after Planck and BICEP2
• Natural Chaotic Inflation and UV Sensitivity
• A New Solution of The Cosmological Constant Problems
• (No) Eternal Inflation and Precision Higgs Physics
• Is Imaginary Starobinsky Model Real?
• Exploring eternal stability with the simple harmonic universe

Cited by in corpus (7)

• Beyond the Cosmological Standard Model
• 'The End'
• Self Tuning Scalar Fields in Spherically Symmetric Spacetimes
• The Big Constant Out, The Small Constant In
• Vacuum energy sequestering and cosmic dynamics
• Could the dynamics of the Universe be influenced by what is going on inside black holes?
• Influence from Future, Arguments