Optical Neural Networks from Coherent Transient Dynamics in Waveguide QED

Fuente: arXiv
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Autores principales: Cao, Jiande, Zeng, Yexiong, Nori, Franco, Xiang, Ze-Liang
Formato: Preprint
Publicado: 2026
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author Cao, Jiande
Zeng, Yexiong
Nori, Franco
Xiang, Ze-Liang
author_facet Cao, Jiande
Zeng, Yexiong
Nori, Franco
Xiang, Ze-Liang
contents Optical neural networks promise ultrafast, low-energy information processing by performing computation directly with photons. Current implementations, however, are largely restricted to steady-state operation and rely on high-latency electro-optical conversion for nonlinear activation. To address these limitations, we propose an all-optical fully connected neural network architecture in which the basic neuronal functions are realized by coherent transient quantum dynamics. Within this framework, phase-tunable nonlocal interference in a giant cavity implements programmable synaptic weights; an integrator operating in the bad cavity regime performs temporal summation by coherently combining sequential wavepackets; and transient Rabi dynamics of a driven two-level system provide nonlinear activation. Full-physics simulations demonstrate high classification accuracy on MNIST and colored-object recognition tasks. These results eliminate the optoelectronic activation bottleneck, reduce latency, and establish transient light-matter dynamics as a native physical resource for high-dimensional nonlinear information processing, paving the way toward fully optical neuromorphic computing.
format Preprint
id arxiv_https___arxiv_org_abs_2605_17752
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Optical Neural Networks from Coherent Transient Dynamics in Waveguide QED
Cao, Jiande
Zeng, Yexiong
Nori, Franco
Xiang, Ze-Liang
Quantum Physics
Optics
Optical neural networks promise ultrafast, low-energy information processing by performing computation directly with photons. Current implementations, however, are largely restricted to steady-state operation and rely on high-latency electro-optical conversion for nonlinear activation. To address these limitations, we propose an all-optical fully connected neural network architecture in which the basic neuronal functions are realized by coherent transient quantum dynamics. Within this framework, phase-tunable nonlocal interference in a giant cavity implements programmable synaptic weights; an integrator operating in the bad cavity regime performs temporal summation by coherently combining sequential wavepackets; and transient Rabi dynamics of a driven two-level system provide nonlinear activation. Full-physics simulations demonstrate high classification accuracy on MNIST and colored-object recognition tasks. These results eliminate the optoelectronic activation bottleneck, reduce latency, and establish transient light-matter dynamics as a native physical resource for high-dimensional nonlinear information processing, paving the way toward fully optical neuromorphic computing.
title Optical Neural Networks from Coherent Transient Dynamics in Waveguide QED
topic Quantum Physics
Optics
url https://arxiv.org/abs/2605.17752