Noncommutative Cosmology

Details Noncommutative Cosmology Noncommutative Cosmology

2003-05-20

arxiv.org/abs/gr-qc/0305077v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

LATEX, 7 pages, one Appendix

Scientific paper

We show that the cosmological large number coincidence can be interpreted as giving the filling factor in a Landau problem. The analogy with the Landau problem leads naturally to the noncommutativity of the gravitational and matter degrees of freedom. We present a toy model that supports this view. We discuss some of the physical consequences this noncommutativity implies, like a different insight into the semiclassical approximation of quantum gravity and a different tackling of the cosmological constant problem.

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