Two-dimensional chiral-waveguide quantum electrodynamics: Long-range qubit correlations and flat-band dark polaritons

Y. Marques, I. A. Shelykh, I. V. Iorsh

Research output: Contribution to journalArticlepeer-review

Abstract

We consider a two-dimensional extension of the one-dimensional waveguide quantum electrodynamics and investigate the nature of linear excitations in two-dimensional arrays of qubits coupled to networks of chiral waveguides. We show that the combined effects of chirality and long-range photon-mediated qubit-qubit interactions lead to the emergence of the two-dimensional flat bands in the polaritonic spectrum, corresponding to slow strongly correlated light.

Original languageEnglish
Article number033702
JournalPhysical Review A
Volume103
Issue number3
DOIs
Publication statusPublished - Mar 2021

Bibliographical note

Funding Information: The work was supported by the Russian Foundation for Basic Research (Project No. 20-02-00084) and the ITMO 5-100 Program. I.A.S. acknowledges support from the Icelandic Research Fund (Project “Hybrid Polaritonics”). Publisher Copyright: © 2021 American Physical Society.

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