Takahiro Sagawa

Optimizing a quantum reservoir computer for time series prediction

2020 · Scientific Reports

Quantum computing and neural networks show great promise for the future of information processing. In this paper we study a quantum reservoir computer (QRC), a framework harnessing quantum dynamics and designed for fast and efficient …

Symmetry and Topology of Successive Quantum Feedback Control

2026 · Physical Review Letters

We establish a symmetry classification for a general class of quantum feedback control. For successive feedback control with a nonadaptive sequence of bare measurements (i.e., with positive Kraus operators), we prove that the symmetry classification …