Collective radiation from distant emitters
Artikel i vetenskaplig tidskrift, 2020

Waveguides allow for direct coupling of emitters separated by large distances, offering a path to connect remote quantum systems. However, when facing the distances needed for practical applications, retardation effects due to the finite speed of light are often overlooked. Previous works studied the non-Markovian dynamics of emitters with retardation, but the properties of the radiated field remain mostly unexplored. By considering a toy model of two distant two-level atoms coupled through a waveguide, we study the spectrum of the radiated field that exhibits non-Markovian features such as linewidth broadening beyond standard superradiance, or narrow Fano-resonance-like peaks. We also observe modifications to the energy-exchange dynamics in the presence of retardation. We discuss a proof-of-concept implementation of our results in a superconducting circuit platform.


Kanupriya Sinha

Princeton University

Alejandro González-Tudela

CSIC - Instituto de Fisica Fundamental (IFF)

Yong Lu

Chalmers, Mikroteknologi och nanovetenskap, Kvantteknologi

Pablo Solano

Universidad de Concepción

Physical Review A

24699926 (ISSN) 24699934 (eISSN)

Vol. 102 4 043718


Atom- och molekylfysik och optik

Annan fysik

Annan elektroteknik och elektronik



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