English

Cosmological bounce from a deformed Heisenberg algebra

General Relativity and Quantum Cosmology 2009-04-10 v2 High Energy Physics - Theory

Abstract

The implications of a deformed Heisenberg algebra on the Friedmann-Robertson-Walker cosmological models are investigated. We consider the Snyder non-commutative space in which the translation group is undeformed and the rotational invariance preserved. When this framework is implemented to one-dimensional systems (which is this case) the modifications are uniquely fixed up to a sign. A cosmological quantum bounce \`a la loop quantum cosmology is then obtained. We also get the Randall-Sundrum braneworld scenario and this way a Snyder-deformed quantum cosmology can be considered as a common phenomenological description for both theories.

Keywords

Cite

@article{arxiv.0805.1178,
  title  = {Cosmological bounce from a deformed Heisenberg algebra},
  author = {Marco Valerio Battisti},
  journal= {arXiv preprint arXiv:0805.1178},
  year   = {2009}
}

Comments

10 pages; version improved, title changed, to appear in PRD