Spacetime Dimensionality from de Sitter Entropy
High Energy Physics - Theory
2018-02-14 v3 General Relativity and Quantum Cosmology
Abstract
We argue that de Sitter universes with a small cosmological constant are entropically favored to have three spatial dimensions. The conclusion relies on the causal-patch description of de Sitter space, where fiducial observers experience local thermal equilibrium up to a stretched horizon, on the holographic principle, and on some assumptions about the nature of gravity and the constituents of Hawking/Unruh radiation.
Cite
@article{arxiv.1106.4548,
title = {Spacetime Dimensionality from de Sitter Entropy},
author = {Arshad Momen and Rakibur Rahman},
journal= {arXiv preprint arXiv:1106.4548},
year = {2018}
}
Comments
5 pages; published in the proceedings of International Conference on Quantum Field Theory and Gravity (QFTG 2014), C14-07-28.4