A class of Bell diagonal states and entanglement witnesses

Authors :: Chruscinski, D.
Kossakowski, A.
Mlodawski, K.
Matsuoka, T.
Source :: Open Systems and Inf. Dynamics 17, 235-254 (2010)
Publication Year :: 2010
Abstract: We analyze special class of bipartite states - so called Bell diagonal states. In particular we provide new examples of bound entangled Bell diagonal states and construct the class of entanglement witnesses diagonal in the magic basis.<br />Comment: 17 pages

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