Neutrino self-interactions in post-reionization era: Lyman- alpha, 21-cm and cross-spectra
The episode discusses a paper on neutrino self-interactions in the post-reionization era, focusing on Lyman-alpha and 21-cm intensity mapping. Hosts explain how combining these two observations breaks parameter degeneracies and provides a scale-dependent fingerprint for interacting neutrinos. They conclude that this multi-tracer approach offers robust methods to constrain neutrino properties across different coupling strengths.