Thoughts on the Vacuum Energy in the Quantum N-Portrait
General Relativity and Quantum Cosmology
2015-10-22 v3 High Energy Physics - Theory
Abstract
An application of the quantum N-portrait to the Universe is discussed, wherein the space-time geometry is understood as a Bose-Einstein condensate of N soft gravitons. If near or at the critical point of a quantum phase transition, indications are found that the vacuum energy is partly suppressed by 1/N, as being due to quanta not in the condensate state. Time evolution decreases this suppression, which might have implications for cosmic expansion.
Keywords
Cite
@article{arxiv.1408.5897,
title = {Thoughts on the Vacuum Energy in the Quantum N-Portrait},
author = {Florian Kuhnel},
journal= {arXiv preprint arXiv:1408.5897},
year = {2015}
}
Comments
7 pages; revised version to match published version