Quantum logic networks for probabilistic teleportation
Liu Jin-Ming (刘金明)ab, Zhang Yong-Sheng (张永生)a, Guo Guang-Can (郭光灿)a
a Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei 230026, China; b Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
Abstract By means of the primitive operations consisting of single-qubit gates, two-qubit controlled-not gates, Von Neuman measurement and classically controlled operations, we construct efficient quantum logic networks for implementing probabilistic teleportation of a single qubit, a two-particle entangled state, and an N-particle entanglement. Based on the quantum networks, we show that after the partially entangled states are concentrated into maximal entanglement, the above three kinds of probabilistic teleportation are the same as the standard teleportation using the corresponding maximally entangled states as the quantum channels.
Received: 09 July 2002
Revised: 11 October 2002
Accepted manuscript online:
Fund: Project supported by the National Fundamental Research Program (Grant No 2001CB309300) and the Innovation funds from Chinese Academy of Sciences.
Cite this article:
Liu Jin-Ming (刘金明), Zhang Yong-Sheng (张永生), Guo Guang-Can (郭光灿) Quantum logic networks for probabilistic teleportation 2003 Chinese Physics 12 251
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