Class of positive partial transposition states

We construct a class of quantum bipartite d(multiply-in-circle sign)d states which are positive under partial transposition (PPT states). This class is invariant under the maximal commutative subgroup of U(d) and contains as special cases many well-known examples of PPT states. States from our class...

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Veröffentlicht in:	Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2006-08, Vol.74 (2), Article 022308
Hauptverfasser:	Chruściński, Dariusz, Kossakowski, Andrzej
Format:	Artikel
Sprache:	eng
Schlagworte:	ATOMIC AND MOLECULAR PHYSICS D STATES QUANTUM ENTANGLEMENT QUANTUM NUMBERS TESTING
Online-Zugang:	Volltext
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