Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2004-11-26
Int.J.Mod.Phys. A20 (2005) 2347-2357
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
7 pages, In Press Int. Mod. Phys. A
Scientific paper
10.1142/S0217751X05024614
We study oscillatory universes within the context of Loop Quantum Cosmology. We make a comparative study of flat and positively curved universes sourced by scalar fields with either positive or negative potentials. We investigate how oscillating universes can set the initial conditions for successful slow-roll inflation, while ensuring that the semi-classical bounds are satisfied. We observe rich oscillatory dynamics with negative potentials, although it is difficult to respect the semi-classical bounds in models of this type.
Lidsey James E.
Mulryne David J.
Nunes Nelson J.
Tavakol Reza
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