Oscillatory behavior of a superradiating system coupled to electron reservoirs

TL;DR

This paper predicts oscillations in photon emission intensity from a superradiating system coupled to electron reservoirs, with potential observation in semiconductor quantum wells or quantum dot arrays under strong magnetic fields.

Contribution

It introduces a novel oscillatory phenomenon in superradiance caused by electron tunneling, expanding understanding of light-matter interactions in open quantum systems.

Findings

Oscillations in emission intensity at frequency ~√(2ΓT) predicted.

Enhanced superradiant peak observed under certain conditions.

Potential experimental observation in semiconductor quantum wells or quantum dots.

Abstract

We investigate a superradiating system coupled to external reservoirs. Under conditions where electrons tunneling at a rate $T$ act like an electron pump, we predict a novel phenomenon in the form of oscillations with a frequency $\omega \simeq \sqrt{2\Gamma T}$ that appear in the (photon) emission intensity, where $\Gamma $ is the spontaneous decay rate of a single two-level system. The effect, together with a strong enhancement of the superradiant peak, should be observable in semiconductor quantum wells in strong magnetic fields, or in quantum dot arrays.