collaborators

21 papers

quant-ph2026

Multicast quantum network coding as optimal symmetric universal cloning over a quantum network

Go Kato, Mio Murao, Masaki Owari

We study the problem of perfectly multicasting symmetric universal clones of unknown quantum states over quantum networks with free classical communication. We construct a protocol…

quant-ph2026

Optimal complex conjugation of unknown isometry channels

Satoshi Yoshida, Mio Murao

Access to the complex conjugate of an unknown quantum channel is a useful resource in quantum oracle problems, motivating the question of how such access can be simulated using onl…

quant-ph2026

Quantum State Preparation via Free Binary Decision Diagram

Yu Tanaka, Hayata Yamasaki, Mio Murao

Quantum state preparation (QSP) is a fundamental task in quantum computation to prepare a quantum state for a given classical description of the quantum state. The classical descri…

quant-ph2026

Probabilistic Storage and Retrieval of Quantum Superchannels for "Retrospective'' Intervention

Wataru Yokojima, Jisho Miyazaki, Mio Murao

Storing an unknown quantum computation in a quantum state and retrieving it at a desired later time is a challenging task, hindered by the no-programming theorem of quantum computa…

quant-ph2026

Scaling-optimal purification of noisy qubit unitary channels

Ryotaro Niwa, Satoshi Yoshida, Koki Ono +5

We consider the problem of purifying noisy qubit unitary channels. Given the ability to apply an unknown qubit unitary channel followed by depolarizing noise, we aim to construct a…

quant-ph2026

Sequential quantum processes with group symmetries

Dmitry Grinko, Satoshi Yoshida, Mio Murao +1

Symmetry plays a crucial role in the design and analysis of quantum protocols. This result shows a canonical circuit decomposition of a -invariant quantum comb for com…