The Physics Potential of Future Long Baseline Neutrino Oscillation Experiments

Different future long baseline neutrino oscillation setups are discussed and the remarkable potential for very precise measurements of mass splittings and mixing angles is shown. Furthermore it will be possible to make precise tests of MSW effects, which allow to determine the sign of $\mathrm{\Delta }{m}^2$. Finally strong limits or measurements of leptonic CP violation will be possible.