Networking Molecular Quantum Emitters on a Single Chain : From Single to Cooperative Emitters

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Main Authors: Marceau, Jean-Baptiste, Balle, Juliette Le, Poujol, Christel, Fossard, Frédéric, Loiseau, Annick, Recher, Gaëlle, Gaufrès, Etienne
Format: Preprint
Published: 2026
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author Marceau, Jean-Baptiste
Balle, Juliette Le
Poujol, Christel
Fossard, Frédéric
Loiseau, Annick
Recher, Gaëlle
Gaufrès, Etienne
author_facet Marceau, Jean-Baptiste
Balle, Juliette Le
Poujol, Christel
Fossard, Frédéric
Loiseau, Annick
Recher, Gaëlle
Gaufrès, Etienne
contents Engineering light-matter interactions between multiple free-space quantum emitters is a central challenge for scalable quantum photonic technologies. In particular, accessing regimes of coherent emitter-emitter interactions, where several emitters are coupled through a shared electromagnetic environment, is essential for coherent emission and quantum functionalities. Such interactions require precise control over emitter separation and stabilization at sub-wavelength distances, a level of spatial organization that remains extremely difficult to achieve at the molecular scale in solid-state systems. Here we introduce Encoded Quantum Chains (EQC), a one-dimensional architecture in which cooperative radiative behaviour is programmed through spatial encoding of identical molecular emitters. Organic emitters and inert spacer molecules are co-encapsulated inside dielectric boron nitride nanotubes (BNNTs), enabling statistical control of intermolecular spacing from nanometres to micrometres while enforcing dipole alignment and one-dimensional confinement. Time-resolved fluorescence under ambient conditions reveals accelerated radiative decay, enhanced emission rates per emitter, and the emergence of non-mono-exponential dynamics as spacing falls below the optical wavelength, consistent with cooperative radiative states in one dimension. Bundling of EQCs enables coupling between emitters in neighbouring BNNTs, driving a dimensional crossover toward higher-dimensional delocalisation of the excitation. This modular building-block approach provides a scalable route to engineer light-matter interactions and many-body optical phenomena in confined molecular systems, opening new opportunities for distributed single-photon sources, programmable quantum emitters, and photonic architectures for quantum technologies.
format Preprint
id arxiv_https___arxiv_org_abs_2603_01107
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Networking Molecular Quantum Emitters on a Single Chain : From Single to Cooperative Emitters
Marceau, Jean-Baptiste
Balle, Juliette Le
Poujol, Christel
Fossard, Frédéric
Loiseau, Annick
Recher, Gaëlle
Gaufrès, Etienne
Materials Science
Optics
Engineering light-matter interactions between multiple free-space quantum emitters is a central challenge for scalable quantum photonic technologies. In particular, accessing regimes of coherent emitter-emitter interactions, where several emitters are coupled through a shared electromagnetic environment, is essential for coherent emission and quantum functionalities. Such interactions require precise control over emitter separation and stabilization at sub-wavelength distances, a level of spatial organization that remains extremely difficult to achieve at the molecular scale in solid-state systems. Here we introduce Encoded Quantum Chains (EQC), a one-dimensional architecture in which cooperative radiative behaviour is programmed through spatial encoding of identical molecular emitters. Organic emitters and inert spacer molecules are co-encapsulated inside dielectric boron nitride nanotubes (BNNTs), enabling statistical control of intermolecular spacing from nanometres to micrometres while enforcing dipole alignment and one-dimensional confinement. Time-resolved fluorescence under ambient conditions reveals accelerated radiative decay, enhanced emission rates per emitter, and the emergence of non-mono-exponential dynamics as spacing falls below the optical wavelength, consistent with cooperative radiative states in one dimension. Bundling of EQCs enables coupling between emitters in neighbouring BNNTs, driving a dimensional crossover toward higher-dimensional delocalisation of the excitation. This modular building-block approach provides a scalable route to engineer light-matter interactions and many-body optical phenomena in confined molecular systems, opening new opportunities for distributed single-photon sources, programmable quantum emitters, and photonic architectures for quantum technologies.
title Networking Molecular Quantum Emitters on a Single Chain : From Single to Cooperative Emitters
topic Materials Science
Optics
url https://arxiv.org/abs/2603.01107