collaborators

5 papers

quant-ph2026

Investigation of Automated Design of Quantum Circuits for Imaginary Time Evolution Methods Using Deep Reinforcement Learning

Ryo Suzuki, Shohei Watabe

Efficient ground state search is fundamental to advancing combinatorial optimization problems and quantum chemistry. While the Variational Imaginary Time Evolution (VITE) method of…

quant-ph2025

Characterization of randomness in quantum circuits of continuous gate sets

Yosuke Mitsuhashi, Ryotaro Suzuki, Tomohiro Soejima +1

In the accompanying paper of arXiv:2408.13472, we have established the method of characterizing the maximal order of asymptotic unitary designs generated by symmetric local random…

quant-ph2025

Unitary Designs of Symmetric Local Random Circuits

Yosuke Mitsuhashi, Ryotaro Suzuki, Tomohiro Soejima +1

We have established the method of characterizing the unitary design generated by a symmetric local random circuit. Concretely, we have shown that the necessary and sufficient condi…

quant-ph2025

Non-Haar random circuits form unitary designs as fast as Haar random circuits

Toshihiro Yada, Ryotaro Suzuki, Yosuke Mitsuhashi +1

The unitary design formation in random circuits has attracted considerable attention due to its wide range of practical applications and relevance to fundamental physics. While the…

quant-ph2025

More global randomness from less random local gates

Ryotaro Suzuki, Hosho Katsura, Yosuke Mitsuhashi +3

Random circuits giving rise to unitary designs are key tools in quantum information science and many-body physics. In this work, we investigate a class of random quantum circuits w…