Current noise of a quantum dot p-i-n junction in a photonic crystal

TL;DR

This paper investigates the shot-noise spectrum of a quantum dot p-i-n junction within a photonic crystal, revealing how the photonic band gap influences current noise and enabling applications in quantum information processing.

Contribution

It demonstrates how current noise measurements can reveal the photonic band gap effects on quantum dot excitons in a photonic crystal.

Findings

Current noise spectrum reflects the photonic band gap properties.

Discontinuous behavior in noise spectrum indicates band gap edges.

Potential for quantum information applications like entanglement and single-photon emission.

Abstract

The shot-noise spectrum of a quantum dot p-i-n junction embedded inside a three-dimensional photonic crystal is investigated. Radiative decay properties of quantum dot excitons can be obtained from the observation of the current noise. The characteristic of the photonic band gap is revealed in the current noise with discontinuous behavior. Applications of such a device in entanglement generation and emission of single photons are pointed out, and may be achieved with current technologies.