Cosmological bounce from a deformed Heisenberg algebra

Details Cosmological bounce from a deformed Heisenberg algebra Cosmological bounce from a deformed Heisenberg algebra

2008-05-08

arxiv.org/abs/0805.1178v2

Phys. Rev. D 79 (2009) 083506

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

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

Scientific paper

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.

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