Harnessing Synthetic Active Particles for Physical Reservoir Computing

• URL: http://arxiv.org/abs/2307.15010v1
• Date: Thu, 27 Jul 2023 17:08:53 GMT
• Title: Harnessing Synthetic Active Particles for Physical Reservoir Computing
• Authors: Xiangzun Wang, Frank Cichos
• Abstract summary: Reservoir computing is a technique for stimulating a network of nodes with fading memory enabling computations and complex predictions. Here we demonstrate physical reservoir computing with a synthetic active microparticle system that self-organizes from an active and passive component into inherently noisy nonlinear dynamical units. Our results pave the way for the study of information processing in synthetic self-organized active particle systems.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The processing of information is an indispensable property of living systems realized by networks of active processes with enormous complexity. They have inspired many variants of modern machine learning one of them being reservoir computing, in which stimulating a network of nodes with fading memory enables computations and complex predictions. Reservoirs are implemented on computer hardware, but also on unconventional physical substrates such as mechanical oscillators, spins, or bacteria often summarized as physical reservoir computing. Here we demonstrate physical reservoir computing with a synthetic active microparticle system that self-organizes from an active and passive component into inherently noisy nonlinear dynamical units. The self-organization and dynamical response of the unit is the result of a delayed propulsion of the microswimmer to a passive target. A reservoir of such units with a self-coupling via the delayed response can perform predictive tasks despite the strong noise resulting from Brownian motion of the microswimmers. To achieve efficient noise suppression, we introduce a special architecture that uses historical reservoir states for output. Our results pave the way for the study of information processing in synthetic self-organized active particle systems.

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