Violation of Strong Energy Condition in Effective Loop Quantum Cosmology

Details Violation of Strong Energy Condition in Effective Loop Quantum Cosmology Violation of Strong Energy Condition in Effective Loop Quantum Cosmology

2006-04-11

arxiv.org/abs/gr-qc/0604053v2

Int.J.Mod.Phys.A22:3137-3146,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

New improved version

Scientific paper

10.1142/S0217751X07036658

In loop quantum cosmology nonperturbative modification to a scalar matter field at short scales implies inflation which also means a violation of the strong energy condition. In the framework of effective Hamiltonian we discuss the issue of violation of the strong energy condition in the presence of quantum geometry potential. It shows that the appearance of quantum geometry potential strengthens the violation of the strong energy condition in small volume regions. In the small volume regions superinflation can easily happen. Furthermore, when the evolution of the universe approaches the bounce scale, this trend of violating the strong energy condition can be greatly amplified.

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