14 citations · 52 across the 14 of their papers we have counts for
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Optimal quantum locally differentially private mechanisms in the high-privacy regime
Yuuya Yoshida
We optimize the trade-off between privacy and utility in the high-privacy regime. We adopt local differential privacy (LDP) and its quantum extension, quantum local differential pr…
Mathematical comparison of classical and quantum mechanisms in optimization under local differential privacy
Yuuya Yoshida
Let . An -tuple of probability vectors is called -differentially private (-DP) if has no negativ…
Perfect Discrimination in Approximate Quantum Theory of General Probabilistic Theories
Yuuya Yoshida, Hayato Arai, Masahito Hayashi
As a modern approach for the foundation of quantum theory, existing studies of General Probabilistic Theories gave various models of states and measurements that are quite differen…
Perfect Discrimination of Non-Orthogonal Separable Pure States on Bipartite System in General Probabilistic Theory
Hayato Arai, Yuuya Yoshida, Masahito Hayashi
We address perfect discrimination of two separable states. When available states are restricted to separable states, we can theoretically consider a larger class of measurements th…
Asymptotic and Non-Asymptotic Analysis for Hidden Markovian Process with Quantum Hidden System
Masahito Hayashi, Yuuya Yoshida
We focus on a data sequence produced by repetitive quantum measurement on an internal hidden quantum system, and call it a hidden Markovian process. Using a quantum version of the…
Asymptotic Properties for Markovian Dynamics in Quantum Theory and General Probabilistic Theories
Yuuya Yoshida, Masahito Hayashi
We address asymptotic decoupling in the context of Markovian quantum dynamics. Asymptotic decoupling is an asymptotic property on a bipartite quantum system, and asserts that the c…