Possible solution to the main cosmological constant problem

Abstract

A modified-gravity-type model of two hypothetical massless vector fields is presented. These vector fields are gravitationally coupled to standard matter and an effective cosmological constant. Considered in a cosmological context, the vector fields dynamically cancel an arbitrary cosmological constant, and flat Minkowski spacetime appears as the limit of attractor-type solutions of the field equations. Asymptotically, the field equations give rise to a standard Friedmann-Robertson-Walker universe and standard Newtonian gravitational dynamics of small systems.

28 pages, v5: published version

References in corpus (6)

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• Vector-field model with compensated cosmological constant and radiation-dominated FRW phase
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• Tetrads and q-theory
• Reconsidering a higher-spin-field solution to the main cosmological constant problem
• A note on interacting holographic dark energy with a Hubble-scale cutoff
• Cosmological perturbations and dynamical analysis for interacting quintessence
• Cosmological acceleration
• Dynamic cancellation of a cosmological constant and approach to the Minkowski vacuum
• A Graceful Exit for the Cosmological Constant Damping Scenario
• Constraints on interacting dark energy revisited: implications for the Hubble tension
• De-Sitter-spacetime instability from a nonstandard vector field
• The unphysical character of dark energy fluids
• Q-field from a 4D-brane: Cosmological constant cancellation and Minkowski attractor
• The Newton constant and gravitational waves in some vector field adjusting mechanisms
• Dynamically broken Lorentz invariance from the Higgs sector?
• The existence of smooth solutions in q-theories
• Robustness of the Cosmological Constant Damping Mechanism Through Matter Eras