On certain effective methods in investigation of positive maps

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説明

The main purpose of this paper is to discuss some effective methods of study of certain characterizations of quantum operations and quantum channels. In particular, an effective method of checking if a given quantum operation is irreducible or not is presented. Our methods are based on analyzing an explicit form of a fixed quantum operation in its Kraus representation. Some examples based on theory of open quantum systems are discussed.

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  • 素粒子論研究

    素粒子論研究 119 (4A), D39-D47, 2012

    素粒子論グループ 素粒子論研究 編集部

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