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arXiv · 2101.07638

Scale-invariant cosmology in de Sitter gauge theory

Tomi Koivisto·Luxi Zheng
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Abstract

The Planck mass and the cosmological constant determine the minimum and the maximum distances in the physical universe. A relativistic theory that takes into account a fundamental distance limit $\ell$ on par with the fundamental speed limit $c$, is based on the de Sitter extension of the Lorentz symmetry. This article proposes a new de Sitter gauge theory of gravity which allows the consistent cosmological evolution of the $\ell$. The theory is locally equivalent to Dirac's scale-invariant version of general relativity, and suggests a novel non-singular extension of cosmology.

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Tomi Koivisto, Luxi Zheng. 2021-01-19. Scale-invariant cosmology in de Sitter gauge theory. https://doi.org/10.1103/physrevd.103.124063

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