期刊
LINEAR ALGEBRA AND ITS APPLICATIONS
卷 439, 期 10, 页码 2844-2860出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.laa.2013.08.029
关键词
Symmetric group; D-type; Atomic map; Decomposable map; Completely positive; Structural physical approximation; Optimal entanglement witness
资金
- Shanghai Leading Academic Discipline Project [B407]
- National Natural Science Foundation of China [11171109]
We construct a class of positive linear maps on matrix algebras. We find conditions when these maps are atomic, decomposable and completely positive. We obtain a large class of atomic positive linear maps. As applications in quantum information theory, we discuss the structural physical approximation and optimality of entanglement witness associated with these maps. (C) 2013 Elsevier Inc. All rights reserved.
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