Cosmology with a long range repulsive force

Abstract

We consider a class of cosmological models in which the universe is filled with a (non-electric) charge density that repels itself by means of a force carried by a vector boson with a tiny mass. When the vector's mass depends upon other fields, the repulsive interaction gives rise to an electromagnetic barrier which prevents these fields from driving the mass to zero. This can modify the cosmology dramatically. We present a very simple realization of this idea in which the vector's mass arises from a scalar field. The electromagnetic barrier prevents this field from rolling down its potential and thereby leads to accelerated expansion.

15 pages, 8 figures, LaTeX (version accepted for publication in PRD). 3 new figures, extended discussion of observational consequences

References in corpus (8)

• Cosmology and the Fate of Dilatation Symmetry
• String Theory and Quintessence
• The Acceleration of the Universe, a Challenge for String Theory
• Inflation, braneworlds and quintessence
• Can the quintessence be a complex scalar field?
• Difficulty of a spinning complex scalar field to be dark energy
• Brane Quintessence
• Homogeneous and Isotropic Charge Densities to Accelerate the Universe

Cited by in corpus (9)

• The Force of Gravity from a Lagrangian containing Inverse Powers of the Ricci Scalar
• Inflationary Magnetogenesis without the Strong Coupling Problem
• Phantom Field with O(N) Symmetry in Exponential Potential
• Fading Gravity and Self-Inflation
• Levitating Dark Matter
• Gauged Quintessence
• Reissner-Nordstrom Expansion
• Isotropic charged cosmologies in infrared-modified electrodynamics
• Dark 2002 and Beyond