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|Type:||Artigo de periódico|
|Title:||Quantum Singularities In Hořava-lifshitz Cosmology|
|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.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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