Mesoscopic Entanglement Induced by Spontaneous Emission in Solid-State Quantum Optics

TL;DR

This paper demonstrates how controlling qubit positions and coherent driving in solid-state quantum optics can induce mesoscopic entanglement through engineered collective spontaneous emission, utilizing superradiant Dicke models.

Contribution

It introduces a method to generate mesoscopic entanglement in solid-state systems by exploiting destructive interference to cancel dipole interactions.

Findings

Achieved steady-state mesoscopic entanglement via collective spontaneous decay.

Engineered pure superradiant Dicke models in one-dimensional waveguides.

Demonstrated control of entanglement through qubit positioning and coherent driving.

Abstract

Implementations of solid state quantum optics provide us with devices where qubits are placed at fixed positions in photonic or plasmonic one dimensional waveguides. We show that solely by controlling the position of the qubits and with the help of a coherent driving, collective spontaneous decay may be engineered to yield an entangled mesoscopic steady-state. Our scheme relies on the realization of pure superradiant Dicke models by a destructive interference that cancels dipole-dipole interactions in one-dimension.