Mechanism for a Decaying Cosmological Constant

Abstract

A mechanism is introduced to reduce a large cosmological constant to a sufficiently small value consistent with observational upper limit. The basic ingradient in this mechanism is a distinction which has been made between the two unit systems used on cosmology and particle physics. We have used a conformal invariant gravitational model to define a particular conformal frame in terms of the large scale properties of the universe. It is then argued that the contributions of mass scales in particle physics to the vacuum energy density should be considered in a different conformal frame. In this manner a cancellation mechanism is presented in which the conformal factor plays a key role to relax the large effective cosmological constant.

6 pages, no figure

References in corpus (3)

• Higher spin fields and the problem of cosmological constant
• Scalar Tensor Theories and Hadamard State Condition
• Duality and the cosmological constant

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• The Coincidence Problem in Holographic f(R) Gravity
• On Non-triviality of Units Transformations
• Coincidence Problem and Holographic $f(R)$ Gravity in Spatially flat and Curved Universes
• Dynamical conformal transformation and classical Euclidean wormholes
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