Neutrino Physics in TeV scale Quantum Gravity Theories

We present how small Dirac neutrino masses can be produced by introducing many light mixing partners for the neutrino within the framework of TeV scale Quantum Gravity Theories. We give a general formula how to calculate the resulting SM flavor eigenstates in this context. This infrared way of generating neutrino masses leads to deviations in the oscillation behaviour of SM neutrinos.Then we use this general solution to calculate the oscillation probabilities of two specific BSM Models (namely Many Species and ADD) and show how the oscillation behaviour of neutrinos within these BSM models are affected w.r.t. ordinary SM oscillations