Author

Y. Nakata

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Preprint Sep 2026

When Classical Correlations Certify Entanglement Recovery

Entanglement and state distinguishability have long been central topics in quantum foundations. While each has developed into a rich subject in its own right, they can be connected through measurements in complementary bases. This connection provides insights into quantum and classical correlations and underlies many i...

Takeru Utsumi, Yota Tachibana, Y. Nakata et al. · 0 citations

Preprint Aug 2026

Towards Optimal Quantum Estimators for State Frame Potential

This work studies the problem of estimating the state frame potential of order $t$ to within additive error $\varepsilon$ under three progressively weaker access models: (i) query access to a multi-state-preparation oracle, (ii) general sample access, and (iii) single-copy sample access.

Jing Bao, Wang Fang, Y. Nakata et al. · 0 citations