Abstract
We report analytic and numerical simulation results on laser cooling of positronium. The minimum temperatures achievable and the cooling time required to reach such temperatures are obtained. Our results suggest that the critical temperature for the Bose-Eistein condensation of positronium is reachable within the ortho-Ps lifetime using a negatively detuned 243 nm laser driving the 1s-2p transition, for Ps densities as low as 10 15 cm -3. We also consider the implications of a Doppler-free annihilation line of para-positronium for the stimulated amplification of gamma rays.
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