Exact Markovian and non-Markovian time dynamics in waveguide QED: collective interactions, bound states in continuum, superradiance and subradiance

Autor: Fatih Dinc, İlke Ercan, Agata M. Brańczyk
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Quantum, Vol 3, p 213 (2019)
Druh dokumentu: article
ISSN: 2521-327X
DOI: 10.22331/q-2019-12-09-213
Popis: We develop a formalism for modelling $exact$ time dynamics in waveguide quantum electrodynamics (QED) using the real-space approach. The formalism does not assume any specific configuration of emitters and allows the study of Markovian dynamics $\textit{fully analytically}$ and non-Markovian dynamics semi-analytically with a simple numerical integration step. We use the formalism to study subradiance, superradiance and bound states in continuum. We discuss new phenomena such as subdivision of collective decay rates into symmetric and anti-symmetric subsets and non-Markovian superradiance effects that can lead to collective decay stronger than Dicke superradiance. We also discuss possible applications such as pulse-shaping and coherent absorption. We thus broaden the range of applicability of real-space approaches beyond steady-state photon transport.
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