Preprint
Aug 2026
A Single Atom in Front of a Mirror is a Universal Reservoir Computer
Universal approximation in reservoir computing is typically associated with a class of reservoirs. We show that universality can be associated with a single reservoir, considering a minimal setup of a single atom in front of a mirror. In its linear-transducer limit, our reservoir is a universal approximator of fading-m...
Peter J. Ehlers, Phi Hung Nguyen, Kanu Sinha et al.
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