Effective Cosmological Constant and Dark Energy
Abstract
Two very different methods are used to estimate the magnitude of the effective cosmological constant / dark energy (for the present cosmic epoch). Their results agree with each other and are in agreement with observations. One method makes use of unimodular gravity and causal set theory, while the other one employs arguments involving spacetime foam and holography. I also motivate and discuss the possibility that quanta of (both) dark energy (and dark matter in the Modified Dark Matter model) are extended/non-local, obeying infinite statistics, also known as quantum Boltzmann statistics. Such quanta out-number ordinary particles obeying Bose-Einstein or Fermi-Dirac statistics by a factor of .
Keywords
Cite
@article{arxiv.1706.04287,
title = {Effective Cosmological Constant and Dark Energy},
author = {Y. Jack Ng},
journal= {arXiv preprint arXiv:1706.04287},
year = {2017}
}
Comments
12 pages, to appear in Proc. BASIC 2017 Conference; a large part of section 5 (addendum) is taken from "Modified Dark Matter: Relating Dark Energy, Dark Matter and Baryonic Matter" by D. Edmonds et al. (in preparation)