Publikationen (FIS)

Strongly Correlated Photon Transport in Waveguide Quantum Electrodynamics with Weakly Coupled Emitters

verfasst von
Sahand Mahmoodian, Mantas Čepulkovskis, Sumanta Das, Peter Lodahl, Klemens Hammerer, Anders S. Sørensen
Abstract

We show that strongly correlated photon transport can be observed in waveguides containing optically dense ensembles of emitters. Remarkably, this occurs even for weak coupling efficiencies. Specifically, we compute the photon transport properties through a chirally coupled system of N two-level systems driven by a weak coherent field, where each emitter can also scatter photons out of the waveguide. The photon correlations arise due to an interplay of nonlinearity and coupling to a loss reservoir, which creates a strong effective interaction between transmitted photons. The highly correlated photon states are less susceptible to losses than uncorrelated photons and have a power-law decay with N. This is described using a simple universal asymptotic solution governed by a single scaling parameter which describes photon bunching and power transmission. We show numerically that, for randomly placed emitters, these results hold even in systems without chirality. The effect can be observed in existing tapered fiber setups with trapped atoms.

Organisationseinheit(en)
Institut für Theoretische Physik
Externe Organisation(en)
University of Copenhagen
Typ
Artikel
Journal
Physical Review Letters
Band
121
ISSN
0031-9007
Publikationsdatum
05.10.2018
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Physik und Astronomie (insg.)
Elektronische Version(en)
https://arxiv.org/abs/1803.02428 (Zugang: Offen)
https://doi.org/10.1103/PhysRevLett.121.143601 (Zugang: Geschlossen)