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quant-ph2025
Macroscopicity and observational deficit in states, operations, and correlations
Teruaki Nagasawa, Eyuri Wakakuwa, Kohtaro Kato +1
To understand the emergence of macroscopic irreversibility from microscopic reversible dynamics, the idea of coarse-graining plays a fundamental role. In this work, we develop a un…
quant-ph2025★ 1 cited
Port-based telecloning of an unknown quantum state
Reiji Okada, Kohtaro Kato, Francesco Buscemi
Telecloning is a protocol introduced by Murao et al. [Phys. Rev. A 59, 156 (1999)] to distribute copies of an unknown quantum state to many receivers in a way that beats the trivia…