How to Hide a Cosmological Constant
General Relativity and Quantum Cosmology
2020-01-08 v1 High Energy Physics - Theory
Abstract
Naive calculations in quantum field theory suggest that vacuum fluctuations should induce an enormous cosmological constant. What if these estimates are right? I argue that even a huge cosmological constant might be hidden in Planck scale fluctuations of geometry and topology---what Wheeler called `spacetime foam'---while remaining virtually invisible macroscopically.
Cite
@article{arxiv.1905.05216,
title = {How to Hide a Cosmological Constant},
author = {S. Carlip},
journal= {arXiv preprint arXiv:1905.05216},
year = {2020}
}
Comments
Fourth award, Gravity Research Foundation 2019 Awards for Essays on Gravitation; based in part on arXiv:1809.08277; 5 pages