Optimal irreversible stimulated emission

Abstract

We studied the dynamics of an initially inverted atom in a semiinfinite waveguide, in the presence of a single propagating photon.We show that atomic relaxation is enhanced by a factor of 2, leading to maximal bunching in the output field. This optimal irreversible stimulated emission is a novel phenomenon that can be observed with state-of-the-art solid-state atoms and waveguides. When the atom interacts with two one-dimensional electromagnetic environments, the preferential emission in the stimulated field can be exploited to efficiently amplify a classical or a quantum state. © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft.