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quant-ph2025
Higher-order quantum computing with known input states
Vanessa Brzić, Satoshi Yoshida, Mio Murao +1
In higher-order quantum computing (HOQC), one typically considers the universal transformation of unknown quantum operations, treated as blackboxes. It is also implicitly assumed t…
quant-ph2025
Asymptotically optimal unitary estimation in by the analysis of graph Laplacian
Satoshi Yoshida, Hironobu Yoshida, Mio Murao
Unitary estimation is the task to estimate an unknown unitary operator with queries to the corresponding unitary operation, and its accuracy is evaluated b…
quant-ph2024
Exponential separation in quantum query complexity of the quantum switch with respect to simulations with standard quantum circuits
Hlér Kristjánsson, Tatsuki Odake, Satoshi Yoshida +4
Quantum theory is consistent with a computational model permitting black-box operations to be applied in an indefinite causal order, going beyond the standard circuit model of comp…