Two-dimensional platforms for entanglement engineering via nonreciprocal dipole interactions
Phys. Rev. A 112, 033714 – Published 16 September, 2025
DOI: https://doi.org/10.1103/pd3d-h2j9
Abstract
We propose a genuine two-dimensional chiral waveguide platform based on the hyperbolic surfaces to engineer nonreciprocal interactions and entanglement between quantum emitters. Tuning the dipole polarization allows for maximally chiral coupling between each emitter and the surface plasmon field, resulting in highly directional energy transfer. By employing a master equation approach, we show that the chiral environment not only enables nonreciprocal dipole interactions but also significantly enhances both transient and steady-state entanglement compared with reciprocal systems. The degree of steady-state entanglement is further tunable through dipole polarization, emitter separation, and external driving. Unlike prior implementations constrained by one-dimensional geometries, our fully planar and highly reconfigurable platform provides a scalable route toward integrated quantum photonic networks and on-chip multipartite entanglement.
