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

  • Authors:

  • De-Chao Li;Zhong-Ke Shi

  • Affiliations:

  • School of Mathematics, Physics and Information Science, Zhejiang Ocean University, Zhoushan, China 316000 and College of Automation, Northwestern Polytechnical University, Xi'an, China 710072;College of Automation, Northwestern Polytechnical University, Xi'an, China 710072

  • Venue:
  • Quantum Information Processing
  • Year:
  • 2011

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Abstract

At first, the ability of pure states as an entanglement catalysts for transformation between 2 脳 2-dimensional mixed states is discussed. Necessary and sufficient conditions for the transformation between 2 脳 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 脳 2-dimensional rank 2 mixed states is illustrated by an example.