When Catalysis is Useful for Probabilistic Entanglement Transformation
Yuan Feng, Runyao Duan, Mingsheng Ying
Abstract
We determine all 2× 2 quantum states that can serve as useful catalysts for a given probabilistic entanglement transformation, in the sense that they can increase the maximal transformation probability. When higher-dimensional catalysts are considered, a sufficient and necessary condition is derived under which a certain probabilistic transformation has useful catalysts.
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