Quantum Singularities in Horava-Lifshitz Cosmology

Details Quantum Singularities in Horava-Lifshitz Cosmology Quantum Singularities in Horava-Lifshitz Cosmology

2012-04-22

arxiv.org/abs/1204.4924v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, revtex

Scientific paper

The recently proposed Horava-Lifshitz (HL) theory of gravity is analyzed from the quantum cosmology point of view. By employing usual quantum cosmology techniques, we study the quantum Friedmann-Lemaitre-Robertson-Walker (FLRW) universe filled with radiation in the context of HL gravity. We find that this universe is quantum mechanically nonsingular in two different ways: the expectation value of the scale factor $(t)$ never vanishes and, if we abandon the detailed balance condition suggested by Horava, the quantum dynamics of the universe is uniquely determined by the initial wave packet and no boundary condition at $a=0$ is indeed necessary.

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