Transport and collective radiance in a basic quantum chiral optical model

Abstract

In our work, we study the dynamics of a single excitation in an one-dimensional array of two-level systems, which are chirally coupled through a single mode waveguide. The chirality is achieved owing to a strong optical spin-locking effect, which in an ideal case gives perfect unidirectional excitation transport. We obtain a simple analytical solution for a single excitation dynamics in the Markovian limit, which directly shows the tolerance of the system with respect to the fluctuations of emitters position. We also show that the Dicke state, which is well-known to be superradiant, has twice lower emission rate in the case of unidirectional quantum interaction. Our model is supported and verified with the numerical computations of quantum emmiters coupled via surface plasmon modes in a metalic nanowire. The obtained results are based on a very general model and can be applied to any chirally coupled system, that gives a new outlook on quantum transport in chiral nanophotonics.

5 pages, 5 figures

References in corpus (6)

• Chiral Quantum Optics
• Quantum spin Hall effect of light
• Quantum Optics of Chiral Spin Networks
• Large Bragg Reflection from One-Dimensional Chains of Trapped Atoms Near a Nanoscale Waveguide
• Anisotropy-Induced Quantum Interference and Population Trapping Between Orthogonal Quantum Dot Exciton States in Semiconductor Cavity Systems
• Collective polaritonic modes in an array of two-level quantum emitters coupled to optical nanofiber

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• Complete polarization control for a nanofiber waveguide using directional coupling
• Self-Ordering of Individual Photons in Waveguide QED and Rydberg-Atom Arrays
• Influence of Disorder on Electromagnetically Induced Transparency in Chiral Waveguide Quantum Electrodynamics
• Unidirectional transmission of single photons under non-ideal chiral photon-atom interactions
• Quantum Trajectory Theory and Simulations of Nonlinear Spectra and Multi-Photon Effects in Waveguide-QED Systems with a Time-Delayed Coherent Feedback
• Quantum synchronisation and clustering in chiral networks
• Force of light on a two-level atom near an ultrathin optical fiber
• Non-inverse dynamics of a quantum emitter coupled to a fully anisotropic environment
• Enhancement of Quantum Excitation Transport by Photonic Nonreciprocity
• Directional coupling of emitters into waveguides: A symmetry perspective
• Two-dimensional chiral waveguide quantum electrodynamics: long range qubit correlations and flat-band dark polaritons
• Directional transport along an atomic chain