Volume 86, Number 6, June 2009
|Number of page(s)||6|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||18 June 2009|
Semiclassical suppression of weak anisotropies of a generic Universe
ICRA - International Center for Relativistic Astrophysics, Dipartimento di Fisica, Università di Roma “Sapienza” P.le A. Moro 5, 00185 Rome, Italy, EU
2 Centre de Physique Théorique de Luminy, Université de la Méditerranée - F-13288 Marseille, France, EU
3 Dipartimento di Fisica (G9), Università di Roma “Sapienza” - P.le A. Moro 5, 00185 Rome, Italy, EU
4 ENEA C.R. Frascati (Dipartimento FPN) - Via E. Fermi 45, 00044 Frascati, Rome, Italy, EU
5 ICRANET C.C. Pescara - P.le della Repubblica 10, 65100 Pescara, Italy, EU
Accepted: 28 May 2009
A semiclassical mechanism which suppresses the weak anisotropies of an inhomogeneous cosmological model is developed. In particular, a wave function of this Universe having a meaningful probabilistic interpretation is obtained that is in agreement with the Copenhagen School. It describes the evolution of the anisotropies with respect to the isotropic scale factor which is regarded as a semiclassical variable playing an observer-like role. Near the cosmological singularity the solution spreads over all values of the anisotropies while, when the Universe expands sufficiently, the closed Friedmann-Robertson-Walker model appears to be the favorite state.
PACS: 98.80.Qc – Quantum cosmology / 04.60.Ds – Canonical quantization / 04.60.Bc – Phenomenology of quantum gravity
© EPLA, 2009
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.