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 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.
KeywordsTransformation Entanglement catalysis Mixed state
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