Polariton quantum blockade in a photonic dot

TL;DR

This paper explores the quantum nonlinear behavior of a photonic quantum dot in strong coupling, demonstrating polariton quantum blockade and single photon generation through detailed theoretical modeling of system dynamics.

Contribution

It provides a theoretical analysis of polariton quantum blockade in a photonic dot, including effects of geometry, linewidths, and detuning on single photon emission.

Findings

Demonstrates polariton quantum blockade in a photonic dot

Shows generation of single photon states via polariton interactions

Analyzes coherence properties under different excitation conditions

Abstract

We investigate the quantum nonlinear dynamics of a resonantly excited photonic quantum dot embedding a quantum well in the strong exciton-photon coupling regime. Within a master equation approach, we study the polariton quantum blockade and the generation of single photon states due to polariton-polariton interactions as a function of the photonic dot geometry, spectral linewidths and energy detuning between quantum well exciton and confined photon mode. The second order coherence function $g^{(2)}(t,t')$ is calculated for both continuous wave and pulsed excitations.