title: Quantum nonreciprocity of nanoscale antenna arrays in timed Dicke states.
abstract: We predict a linear nonreciprocal effect that is based on the timed Dicke states in an ensemble of dipole-dipole coupled oscillators. This effect is examined on a nanoscale antenna array comprising two-level identical emitters. The studied nonreciprocity, which has no analogs in classical antennas, manifests itself in strong characteristic asymmetry of the radiation pattern, even for a single-photon laser pumping. Promising applications of our results for remotely tunable nanoantennas and nanocircuit elements are discussed.
authors.affiliation: Department of Physical Electronics, Tel Aviv University, Tel-Aviv 69978, Israel.
authors.forename: Gregory Y
authors.initials: GY
authors.lastname: Slepyan
authors.forename: Amir
authors.initials: A
authors.lastname: Boag