Neutrino flavor oscillations in a curved space-time
arXiv:1410.1523 · doi:10.1007/s10714-015-1899-z 10.1007/s10714-015-1899-z
Abstract
Using a WKB approximation of the Dirac equation in a curved spacetime, we obtain the expression for the phase shift between two neutrino mass eigenstates in a generic gravitational field. We apply this expression to two specific space-time geometries, namely the Kerr-Newman metric describing a rotating and charged black hole, and the Friedmann-Robertson-Walker metric.
15 pages, two figures