Primordial monopolium as dark matter

Abstract The existence of monopoles is a characteristic signature Kaluza–Klein multidimensional theories. topology these solutions extremely interesting. dipole solution, which we have associated to monopole–anti-monopole bound state, the leitmotiv this investigation. in its lowest energy here call also monopolium, electromagnetically inert free space interacting only gravitationally. Monopolium when with time dependent magnetic fields acquires induced moment and radiates. We analyzed most favorable astrophysical scenario for radiative monopolium found that amount radiation so small not detectable by conventional equipments. These findings suggest if existent, would be candidate primordial dark matter constituent.