114 citations · 980 across the 45 of their papers we have counts for
Showing 2019 · quant-phShow all
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quant-ph2019★ 4 cited
A Fundamental Upper Bound for Signal to Noise Ratio of Quantum Detectors
Ryota Katsube, Masahiro Hotta, Koji Yamaguchi
Quantum fluctuations yield inevitable noises in quantum detection. We derive an upper bound of signal to noise ratio for arbitrary quantum detection described by trace-class operat…
quant-ph2019★ 1 cited
Strong Chaos of Fast Scrambling Yields Order: Emergence of Decoupled Quantum Information Capsules
Masahiro Hotta, Koji Yamaguchi
The information loss problem in black hole evaporation is one of fundamental issues. Its resolution requires more profound understanding of information storage mechanism in quantum…
quant-ph2019★ 4 cited
Quantum Information Capsule in Multiple-Qudit Systems and Continuous-Variable Systems
Koji Yamaguchi, Masahiro Hotta
Quantum correlations in an entangled many-body system are capable of storing information. Even when the information is injected by a local unitary operation to the system, the enta…