Probabilistic quantum cloning via Greenberger-Horne-Zeilinger states

Details Probabilistic quantum cloning via Greenberger-Horne-Zeilinger states Probabilistic quantum cloning via Greenberger-Horne-Zeilinger states

2000-01-21

arxiv.org/abs/quant-ph/0001081v2

Phys. Rev. A 62 (2000) 042302

Physics

Quantum Physics

8 Pages, 4 Figures, final version to appear in PRA

Scientific paper

10.1103/PhysRevA.62.042302

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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