Cosmological Constant and Noncommutativity: A Newtonian point of view
High Energy Physics - Theory
2010-11-05 v2
Abstract
We study a Newtonian cosmological model in the context of a noncommutative space. It is shown that the trajectories of a test particle undergo modifications such that it no longer satisfies the cosmological principle. For the case of a positive cosmological constant, spiral trajectories are obtained and corrections to the Hubble constant appear. It is also shown that, in the limit of a strong noncommutative parameter, the model is closely related to a particle in a G\"odel-type metric.
Keywords
Cite
@article{arxiv.hep-th/0310266,
title = {Cosmological Constant and Noncommutativity: A Newtonian point of view},
author = {Juan M. Romero and J. A. Santiago},
journal= {arXiv preprint arXiv:hep-th/0310266},
year = {2010}
}
Comments
14 pages, 3 figures, Introduction was changed and references added. Final version accepted for publication in JMPLA