Quantum cloning with an optical fiber amplifier

Details Quantum cloning with an optical fiber amplifier Quantum cloning with an optical fiber amplifier

2002-03-13

arxiv.org/abs/quant-ph/0203056v2

Phys. Rev. Lett. 89, 107901 (2002)

Physics

Quantum Physics

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.89.107901

It has been shown theoretically that a light amplifier working on the physical principle of stimulated emission should achieve optimal quantum cloning of the polarization state of light. We demonstrate close-to-optimal universal quantum cloning of polarization in a standard fiber amplifier for telecom wavelengths. For cloning 1 --> 2 we find a fidelity of 0.82, the optimal value being 5/6 = 0.83.

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