7 citations · 13 across the 3 of their papers we have counts for
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Perfect Quantum Error-Correcting Condition Revisited
Tomohiro Ogawa
A simple and unifying method to show the perfect error-correcting condition is provided based on the quantum mutual information. The one-to-one parameterization of quantum operatio…
A New Proof of the Channel Coding Theorem via Hypothesis Testing in Quantum Information Theory
Tomohiro Ogawa, Hiroshi Nagaoka
A new proof of the direct part of the quantum channel coding theorem is shown based on a standpoint of quantum hypothesis testing. A packing procedure of mutually noncommutative op…
On Error Exponents in Quantum Hypothesis Testing
Tomohiro Ogawa, Masahito Hayashi
In the simple quantum hypothesis testing problem, upper bounds on the error probabilities are shown based on a key operator inequality between a density operator and its pinching.…
A New Proof of the Direct Part of Stein's Lemma in Quantum Hypothesis Testing
Tomohiro Ogawa, Masahito Hayashi
The direct part of Stein's lemma in quantum hypothesis testing is revisited based on a key operator inequality between a density operator and its pinching. The operator inequality…