Single-photon routing in many-emitter waveguide quantum electrodynamics

Single-photon routing had seen a tremendous amount of research activity in the past decade due to its applicability in quantum information processing and on-chip quantum computing. The problem of single-photon routing in two single modes of waveguides coupled with a quantum emitter has already been studied [Phys. Rev. A 94, 063817 (2016)]. The focus of this study is to investigate how the presence of many emitters will influence the single-emitter version of photon routing scheme. The results of this work may find applications in quantum circuitry and many-body physics in optical systems.