Phys. Rev. A 69, 062310 (2004) [5 pages]

When catalysis is useful for probabilistic entanglement transformation

Abstract

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Yuan Feng^*, Runyao Duan^†, and Mingsheng Ying^‡
State Key Laboratory of Intelligent Technology and Systems, Department of Computer Science and Technology, Tsinghua University, Beijing, China, 100084

Received 9 January 2004; published 9 June 2004

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.

URL:

http://link.aps.org/doi/10.1103/PhysRevA.69.062310

DOI:

10.1103/PhysRevA.69.062310

PACS:

03.67.Mn, 03.65.Ud

^*Electronic address: fengy99g@mails.tsinghua.edu.cn

^†Electronic address: dry02@mails.tsinghua.edu.cn

^‡Electronic address: yingmsh@mails.tsinghua.edu.cn

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Phys. Rev. A 69, 062310 (2004) [5 pages]

When catalysis is useful for probabilistic entanglement transformation