Harnessing Photon Indistinguishability in Quantum Extreme Learning Machines

Fuente: arXiv
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Bibliographic Details
Main Authors: Joly, Malo, Makowski, Adrian, Courme, Baptiste, Porstendorfer, Lukas, Wilksen, Steffen, Charbon, Edoardo, Gies, Christopher, Defienne, Hugo, Gigan, Sylvain
Format: Preprint
Published: 2025
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_version_ 1866909612819611648
author Joly, Malo
Makowski, Adrian
Courme, Baptiste
Porstendorfer, Lukas
Wilksen, Steffen
Charbon, Edoardo
Gies, Christopher
Defienne, Hugo
Gigan, Sylvain
author_facet Joly, Malo
Makowski, Adrian
Courme, Baptiste
Porstendorfer, Lukas
Wilksen, Steffen
Charbon, Edoardo
Gies, Christopher
Defienne, Hugo
Gigan, Sylvain
contents Recent advancements in machine learning have led to an exponential increase in computational demands, driving the need for innovative computing platforms. Quantum computing, with its Hilbert space scaling exponentially with the number of particles, emerges as a promising solution. In this work, we implement a quantum extreme machine learning (QELM) protocol leveraging indistinguishable photon pairs and multimode fiber as a random densly connected layer. We experimentally study QELM performance based on photon coincidences -- for distinguishable and indistinguishable photons -- on an image classification task. Simulations further show that increasing the number of photons reveals a clear quantum advantage. We relate this improved performance to the enhanced dimensionality and expressivity of the feature space, as indicated by the increased rank of the feature matrix in both experiment and simulation.
format Preprint
id arxiv_https___arxiv_org_abs_2505_11238
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Harnessing Photon Indistinguishability in Quantum Extreme Learning Machines
Joly, Malo
Makowski, Adrian
Courme, Baptiste
Porstendorfer, Lukas
Wilksen, Steffen
Charbon, Edoardo
Gies, Christopher
Defienne, Hugo
Gigan, Sylvain
Quantum Physics
Recent advancements in machine learning have led to an exponential increase in computational demands, driving the need for innovative computing platforms. Quantum computing, with its Hilbert space scaling exponentially with the number of particles, emerges as a promising solution. In this work, we implement a quantum extreme machine learning (QELM) protocol leveraging indistinguishable photon pairs and multimode fiber as a random densly connected layer. We experimentally study QELM performance based on photon coincidences -- for distinguishable and indistinguishable photons -- on an image classification task. Simulations further show that increasing the number of photons reveals a clear quantum advantage. We relate this improved performance to the enhanced dimensionality and expressivity of the feature space, as indicated by the increased rank of the feature matrix in both experiment and simulation.
title Harnessing Photon Indistinguishability in Quantum Extreme Learning Machines
topic Quantum Physics
url https://arxiv.org/abs/2505.11238