Spatially Resolved Photon Statistics of General Nanophotonic Systems

While experimental measurements of photon correlations have become routine in laboratories, theoretical access to these quantities for the light generated in complex nanophotonic devices remains a major challenge. Current methods are limited to specific simplified cases and lack generality. Here we...

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Main Authors: Maksim Lednev, Diego Fernández de la Pradilla, Frieder Lindel, Esteban Moreno, Francisco J. García-Vidal, Johannes Feist
Format: Article
Language:English
Published: American Physical Society 2025-06-01
Series:PRX Quantum
Online Access:http://doi.org/10.1103/z3cr-l7pw
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author Maksim Lednev
Diego Fernández de la Pradilla
Frieder Lindel
Esteban Moreno
Francisco J. García-Vidal
Johannes Feist
author_facet Maksim Lednev
Diego Fernández de la Pradilla
Frieder Lindel
Esteban Moreno
Francisco J. García-Vidal
Johannes Feist
author_sort Maksim Lednev
collection DOAJ
description While experimental measurements of photon correlations have become routine in laboratories, theoretical access to these quantities for the light generated in complex nanophotonic devices remains a major challenge. Current methods are limited to specific simplified cases and lack generality. Here we present a novel method that provides access to photon statistics resolved in space and frequency in arbitrary electromagnetic environments. Within the macroscopic QED framework, we develop a practical tool to compute electric field correlations for complex quantum systems by including lossy two-level systems that act as field detectors within the system. To make the implementation feasible, we use a recently developed multiemitter few-mode quantization method to correctly account for fully retarded light propagation to the detectors. We demonstrate the effectiveness and robustness of the proposed technique by studying the photon correlations of one and two emitters in close proximity to a plasmonic nanoparticle. The simulations show that even in these relatively simple configurations, the light statistics exhibit a strong angular dependence. These results highlight the importance of going beyond conventional quantum optical approaches to fully capture the analyzed physical effects and enable the study of the quantum light generation in realistic nanophotonic devices.
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publishDate 2025-06-01
publisher American Physical Society
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series PRX Quantum
spelling doaj-art-a794d3ca22394d019b90ec0f736c88b72025-08-20T03:28:00ZengAmerican Physical SocietyPRX Quantum2691-33992025-06-016202036110.1103/z3cr-l7pwSpatially Resolved Photon Statistics of General Nanophotonic SystemsMaksim LednevDiego Fernández de la PradillaFrieder LindelEsteban MorenoFrancisco J. García-VidalJohannes FeistWhile experimental measurements of photon correlations have become routine in laboratories, theoretical access to these quantities for the light generated in complex nanophotonic devices remains a major challenge. Current methods are limited to specific simplified cases and lack generality. Here we present a novel method that provides access to photon statistics resolved in space and frequency in arbitrary electromagnetic environments. Within the macroscopic QED framework, we develop a practical tool to compute electric field correlations for complex quantum systems by including lossy two-level systems that act as field detectors within the system. To make the implementation feasible, we use a recently developed multiemitter few-mode quantization method to correctly account for fully retarded light propagation to the detectors. We demonstrate the effectiveness and robustness of the proposed technique by studying the photon correlations of one and two emitters in close proximity to a plasmonic nanoparticle. The simulations show that even in these relatively simple configurations, the light statistics exhibit a strong angular dependence. These results highlight the importance of going beyond conventional quantum optical approaches to fully capture the analyzed physical effects and enable the study of the quantum light generation in realistic nanophotonic devices.http://doi.org/10.1103/z3cr-l7pw
spellingShingle Maksim Lednev
Diego Fernández de la Pradilla
Frieder Lindel
Esteban Moreno
Francisco J. García-Vidal
Johannes Feist
Spatially Resolved Photon Statistics of General Nanophotonic Systems
PRX Quantum
title Spatially Resolved Photon Statistics of General Nanophotonic Systems
title_full Spatially Resolved Photon Statistics of General Nanophotonic Systems
title_fullStr Spatially Resolved Photon Statistics of General Nanophotonic Systems
title_full_unstemmed Spatially Resolved Photon Statistics of General Nanophotonic Systems
title_short Spatially Resolved Photon Statistics of General Nanophotonic Systems
title_sort spatially resolved photon statistics of general nanophotonic systems
url http://doi.org/10.1103/z3cr-l7pw
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AT friederlindel spatiallyresolvedphotonstatisticsofgeneralnanophotonicsystems
AT estebanmoreno spatiallyresolvedphotonstatisticsofgeneralnanophotonicsystems
AT franciscojgarciavidal spatiallyresolvedphotonstatisticsofgeneralnanophotonicsystems
AT johannesfeist spatiallyresolvedphotonstatisticsofgeneralnanophotonicsystems