On the quantumness of Quantum cosmology
Colóquio DFMA com o Prof. Patrick Peter (Institut D'Astrophysique de Paris)
03/06, 3ª feira, das 14h às 16h. Na sala Jayme Tiomno.
Primordial cosmological perturbations are usually considered as resulting from quantum vacuum fluctuations over a classically evolving background, a serious drawback for consistency. To address this issue, one often quantize the background as well, and then restrict attention to a single peaked wave function whose expectation value provides a semi-classical scale factor. This procedure hides the most relevant quantum properties of the background.
I will first summarize classical and quantum cosmology to show that the latter implies possible quantum superpositions (interference between universes!) whose effects can be measured in forthcoming observations.
Data de Início:
03/06/2025
