collaborators

5 papers

quant-ph2026

Beyond Optimization: Harnessing Quantum Annealer Dynamics for Machine Learning

Akitada Sakurai, Aoi Hayashi, Tadayoshi Matsumori +3

Quantum annealing is typically regarded as a tool for combinatorial optimization, but its coherent dynamics also offer potential for machine learning. We present a model that encod…

quant-ph2026

Quantum Random Features: A Spectral Framework for Quantum Machine Learning

Akitada Sakurai, Aoi Hayashi, William John Munro +1

Quantum machine learning (QML) models often require deep, parameterized circuits to capture complex frequency components, limiting their scalability and near-term implementation. W…

quant-ph2025

Modular quantum extreme reservoir computing

Hon Wai Lau, Aoi Hayashi, Akitada Sakurai +2

Quantum reservoir computing employs fixed quantum dynamics as a feature map for machine learning. Integrating multiple quantum reservoirs, however, raises a key question: how few i…

quant-ph2025

Equilibration of Non-interacting Photons and Quantum Signatures of Chaos

V. M. Bastidas, H. L. Nourse, A. Sakurai +4

Equilibration plays a fundamental role in our understanding of statistical mechanics and the long-time dynamics of many-body systems. In quantum systems, the route to equilibration…

quant-ph2025

Simple Hamiltonian dynamics is a powerful quantum processing resource

Akitada Sakurai, Aoi Hayashi, William John Munro +1

A quadrillion dimensional Hilbert space hosted by a quantum processor with over 50 physical qubits has been expected to be powerful enough to perform computational tasks ranging fr…