Feb 18 – 26, 2021
Europe/Rome timezone

Breaking isotropy in the early Universe with neutrino oscillations

Feb 22, 2021, 5:50 PM
Room 3 (https://unipd.link/NeuTel-ParallelRoom3)

Room 3


Parallel Contributed Talk Neutrino Theory and Cosmology Non Standard Interactions and Cosmology


Rasmus S. L. Hansen (Niels Bohr Institute)


Neutrino oscillations in the early Universe are commonly assumed to preserve homogeneity and isotropy. However, we know that collective oscillations can break both in the environments of supernovae and neutron star mergers. In this talk I will describe the conditions under which homogeneity and isotropy are broken by neutrino oscillations in the early Universe, and I will demonstrate how this materializes during standard neutrino decoupling with a simple model. Finally, I will comment on the possible observable impact of inhomogeneous and anisotropic neutrino oscillations in the early Universe.

Primary author

Rasmus S. L. Hansen (Niels Bohr Institute)


Prof. Irene Tamborra (Niels Bohr Institute) Dr Shashank Shalgar ( Niels Bohr Institute)

Presentation materials