Author

Xing-Ze Qiu

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Preprint Jul 2026

Fisher-Orthogonal Memory in Quantum Reservoir Computing

Quantum reservoir computing processes temporal information through driven many-body dynamics, but its performance is ultimately limited by how accurately past inputs can be extracted from finite measurements. Here we formulate this limitation as a local multiparameter estimation problem and introduce a delay-space quan...

Ce Wang, Xing-Ze Qiu · 0 citations

Preprint Jul 2026

Quantum magic and non-commutativity as computational resources in quantum reservoir computing

A theoretical framework in Pauli-Liouville space is developed that provides a unified analytical treatment of the echo state property (ESP), nonlinear expressive power, and quantum resources and shows that the ESP is natively guaranteed by the Liouvillian spectral gap, decoupling it from quantum magic.

Wei Xia, S. Cao, Xingze Qiu et al. · 3 citations