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arXiv · 0906.3174

The Equivalence Principle and the Constants of Nature

Thibault Damour
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Abstract

We briefly review the various contexts within which one might address the issue of ``why'' the dimensionless constants of Nature have the particular values that they are observed to have. Both the general historical trend, in physics, of replacing a-priori-given, absolute structures by dynamical entities, and anthropic considerations, suggest that coupling ``constants'' have a dynamical nature. This hints at the existence of observable violations of the Equivalence Principle at some level, and motivates the need for improved tests of the Equivalence Principle.

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Thibault Damour. 2009-06-17. The Equivalence Principle and the Constants of Nature. https://doi.org/10.1007/s11214-009-9533-6

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