13-18 December 2015
International Conference Centre Geneva
Europe/Zurich timezone

Decoherence of cosmological massive neutrinos

15 Dec 2015, 18:40
3m
Level -1, Room 16 (International Conference Centre Geneva)

Level -1, Room 16

International Conference Centre Geneva

17 Rue de Varembé, 1211 Geneva

Speaker

Daniel Boriero

Description

The transition of cosmological massive neutrinos into the non-relativistic regime acts as a decoherence process which also changes the oscillation probability, reaching different values for the asymptotic flavour composition. Furthermore, this effect could also increase the entropy inside the neutrino ensemble, triggering the formation of bulk viscosity and introducing fluctuations in the gravitational potential, which in turn induces secondary anisotropies in the cosmic microwave background by the integrated Sachs-Wolfe effect.

Primary author

Co-authors

Prof. Dominik Schwarz (Bielefeld University) Dr Hermano Velten (Universidade Federal do Espirito Santo (UFES)

Presentation Materials