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The European Physical Journal D

, Volume 65, Issue 3, pp 621–625 | Cite as

Optimal asymmetric 1 → 4 quantum cloning in arbitrary dimension

  • X. J. Ren
  • Y. Xiang
  • H. Fan
Regular Article Quantum Information

Abstract

We present an optimal asymmetric 1 → 4 quantum cloner. Our derivation generalizes the constructions of optimal asymmetric 1 → 2 and 1 → 3 quantum cloners in [Quantum Inf. Comput 5, 583 (2005)]. We explicitly prove the optimality of this cloner and give the maximum achievable fidelities. We also present the relation between the optimal quantum cloner with the multipartite entangled state which shows the singlet monogamy inequality in [Phys. Rev. Lett. 103, 050501 (2009)].

Keywords

Input State Quantum Cloner Cloning Machine Support Space Quantum Cloning Machine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.School of Physics and ElectronicsHenan UniversityKaifengP.R. China
  2. 2.Beijing National Laboratory for Condensed Matter Physics, Institute of PhysicsChinese Academy of SciencesBeijingP.R. China

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