455 citations · 1k across the 34 of their papers we have counts for
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quant-ph2003★ 53 cited
Kraus representation in the presence of initial correlations
Hiroyuki Hayashi, Gen Kimura, Yukihiro Ota
We examine the validity of the Kraus representation in the presence of initial correlations and show that it is assured only when a joint dynamics is locally unitary.
quant-ph2003★ 455 cited
The Bloch Vector for N-Level Systems
Gen Kimura
We determine the set of the Bloch vectors for N-level systems, generalizing the familiar Bloch ball in 2-level systems. An origin of the structural difference from the Bloch ball i…