Distorted neutrino oscillations from time varying cosmic fields
Distorted neutrino oscillations from time varying cosmic fields
Cold, ultralight ($\ensuremath{\ll}\mathrm{eV}$) bosonic fields can induce fast temporal variation in neutrino couplings, thereby distorting neutrino oscillations. In this paper, we exploit this effect to introduce a novel probe of neutrino time variation and dark matter at long-baseline experiments. We study several representative observables and find that current and future …