Catalysis of entanglement transformation for 2 × 2-dimensional mixed states

At first, the ability of pure states as an entanglement catalysts for transformation between 2 × 2-dimensional mixed states is discussed. Necessary and sufficient conditions for the transformation between 2 × 2-dimensional rank 2 mixed states by entanglement-assisted LOCC operations (ELOCC) are then...

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Veröffentlicht in:Quantum information processing 2011-10, Vol.10 (5), p.697-704
Hauptverfasser: Li, De-chao, Shi, Zhong-ke
Format: Artikel
Sprache:eng
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Zusammenfassung:At first, the ability of pure states as an entanglement catalysts for transformation between 2 × 2-dimensional mixed states is discussed. Necessary and sufficient conditions for the transformation between 2 × 2-dimensional rank 2 mixed states by entanglement-assisted LOCC operations (ELOCC) are then presented. In addition, the method to construct an entanglement catalyst for transformation between 2 × 2-dimensional rank 2 mixed states is illustrated by an example.
ISSN:1570-0755
1573-1332
DOI:10.1007/s11128-011-0229-y