Optimal irreversible stimulated emission

TL;DR

This paper investigates optimal irreversible stimulated emission in a waveguide-atom system, revealing enhanced atomic relaxation and potential for efficient quantum or classical state amplification using state-of-the-art solid-state setups.

Contribution

It introduces the concept of optimal irreversible stimulated emission and demonstrates its potential for efficient quantum or classical state amplification in waveguide systems.

Findings

Atomic relaxation is enhanced by a factor of 2.

Maximal bunching observed in the output field.

Potential for efficient amplification of quantum states.

Abstract

We studied the dynamics of an initially inverted atom in a semi-infinite 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.