Artículos de revistas
Quantum singularities in Horava-Lifshitz cosmology
Registro en:
Physical Review D. Amer Physical Soc, v. 86, n. 6, 2012.
1550-7998
WOS:000308393900002
10.1103/PhysRevD.86.063506
Autor
Pitelli, JPM
Saa, A
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) 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. 86 6 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)