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Probabilistic quantum cloning via Greenberger-Horne-Zeilinger states

Chuan-Wei Zhang·Chuan-Feng Li·Zi-Yang Wang·Guang-Can Guo
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Abstract

We propose a probabilistic quantum cloning scheme using Greenberger-Horne-Zeilinger states, Bell basis measurements, single-qubit unitary operations and generalized measurements, all of which are within the reach of current technology. Compared to another possible scheme via Tele-CNOT gate [D. Gottesman and I. L. Chuang, Nature 402, 390 (1999)], the present scheme may be used in experiment to clone the states of one particle to those of two different particles with higher probability and less GHZ resources.

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Chuan-Wei Zhang, Chuan-Feng Li, Zi-Yang Wang, Guang-Can Guo. 2000-06-14. Probabilistic quantum cloning via Greenberger-Horne-Zeilinger states. https://doi.org/10.1103/physreva.62.042302

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