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Type: Artigo de periódico
Title: Quantum Singularities In Hořava-lifshitz Cosmology
Author: Pitelli J.P.M.
Saa A.
Abstract: The recently proposed Hořava-Lifshitz theory of gravity is analyzed from the quantum cosmology point of view. By employing usual quantum cosmology techniques, we study the quantum Friedmann-Lemaître-Robertson-Walker universe filled with radiation in the context of Hořava-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 Hořava, the quantum dynamics of the universe is uniquely determined by the initial wave packet and no boundary condition at a=0 is necessary. © 2012 American Physical Society.
Rights: aberto
Identifier DOI: 10.1103/PhysRevD.86.063506
Date Issue: 2012
Appears in Collections:Unicamp - Artigos e Outros Documentos

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