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Type: Artigo de periódico
Title: Quantum singularities in Horava-Lifshitz cosmology
Author: Pitelli, JPM
Saa, A
Abstract: The recently proposed Horava-Lifshitz 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 universe filled with radiation in the context of Horava-Lifshitz gravity. We find that this universe is quantum mechanically nonsingular in two different ways: the expectation value of the scale factor < a >(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 necessary.
Country: EUA
Editor: Amer Physical Soc
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.86.063506
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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