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Author

Hayato Arai

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2 papers indexed here

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Preprint Sep 2026

Universal distillation of quantum entanglement

Distillable entanglement---the maximum rate of Bell states extractable from the given noisy entangled states via local operations and classical communication (LOCC)---has been a central quantity to characterize the operational value of entangled states. However, this operational meaning had been known to be valid only...

Ryuji Takagi, Kaito Watanabe, Takaya Matsuura et al. · 2 citations
Preprint Aug 2026

Entanglement Generation Beyond Quantum Theory: From Product States to Popescu-Rohrlich Boxes

Entanglement generation is a fundamental dynamical capability in quantum information science and underpins many quantum advantages. While quantum theory enables it through unitary dynamics, boxworld, a generalized probabilistic theory admitting Popescu--Rohrlich boxes with supraquantum correlations, has no reversible t...

Shun Umekawa, Akihiro Hokkyo, Hayato Arai et al. · 0 citations

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