Masahito Hayashi
3 papers in the PaperMetrix corpus
Papers by this author
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Quantum state estimation with nuisance parameters
2020 · Journal of Physics A Mathematical and Theoretical
Abstract In parameter estimation, nuisance parameters refer to parameters that are not of interest but nevertheless affect the precision of estimating other parameters of interest. For instance, the strength of noises in a probe can …
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Tight Cramér-Rao type bounds for multiparameter quantum metrology through conic programming
2022 · arXiv (Cornell University)
In the quest to unlock the maximum potential of quantum sensors, it is of paramount importance to have practical measurement strategies that can estimate incompatible parameters with best precisions possible. However, it is still not …
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Resolvability of classical-quantum channels
2024 · arXiv (Cornell University)
Channel resolvability concerns the minimum resolution for approximating the channel output. We study the resolvability of classical-quantum channels in two settings, for the channel output generated from the worst input, and form the fixed independent …