Deformed spaces and loop cosmology

Details Deformed spaces and loop cosmology Deformed spaces and loop cosmology

2008-10-28

arxiv.org/abs/0810.5039v1

J.Phys.Conf.Ser.189:012005,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, talk given at NEB-XIII Recent Developments in Gravity, Thessaloniki June 2008

Scientific paper

10.1088/1742-6596/189/1/012005

The non-singular bouncing solution of loop quantum cosmology is reproduced by a deformed minisuperspace Heisenberg algebra. This algebra is a realization of the Snyder space, is almost unique and is related to the $\kappa$-Poincar\'e one. Since the sign of the deformation parameter it is not fixed, the Friedmann equation of braneworlds theory can also be obtained. Moreover, the sign is the only freedom in the picture and these frameworks are the only ones which can be reproduced by our deformed scheme. A generalized uncertainty principle for loop quantum cosmology is also proposed.

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