Bulletin of the American Physical Society
APS March Meeting 2024
Monday–Friday, March 4–8, 2024; Minneapolis & Virtual
Session N54: Nonlinear Systems and Interactions
11:30 AM–1:18 PM,
Wednesday, March 6, 2024
Room: 203AB
Sponsoring
Unit:
DAMOP
Chair: Chandra M. Adhikari, Fayetteville State University
Abstract: N54.00007 : Fully Non-Linear Neuromorphic Computing with Linear Wave Scattering
12:42 PM–12:54 PM
Presenter:
Clara Wanjura
(Max Planck Institute for Science of Light)
Authors:
Clara Wanjura
(Max Planck Institute for Science of Light)
Florian Marquardt
(Friedrich-Alexander University Erlangen-)
In this talk, we present a scheme for a neuromorphic system that relies on linear wave scattering and yet achieves non-linear processing with a high expressivity [1]. The key idea is to inject the input via physical parameters that affect the scattering processes. Moreover, we show that gradients needed for training can be directly measured in scattering experiments. We predict classification accuracies on par with results obtained by standard artificial neural networks. Our proposal can be readily implemented with existing state-of-the-art, scalable platforms, e.g., in optics, microwave and electrical circuits, and we propose an integrated-photonics implementation based on racetrack resonators that achieves high connectivity with a minimal number of waveguide crossings.
[1] C.C. Wanjura, F. Marquardt. arXiv:2308.16181 (2023).
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