Discrete energy spectrum of Hawking radiation from Schwarzschild
We analyze the allowed energy levels of Hawking radiation from Schwarzschild
surfaces in space-times with large extra dimensions. From the requirement that
the wave functions associated with these particles be single-valued and obey
radial boundary conditions, we derive an upper bound of their discrete energy
spectrum as a function of the number of large extra dimensions and the mass of
the black hole. Furthermore, we investigate the spacing of the energy levels.