Optical implementation of continuous-variable quantum cloning machines

Details Optical implementation of continuous-variable quantum cloning machines Optical implementation of continuous-variable quantum cloning machines

2000-12-12

arxiv.org/abs/quant-ph/0012048v1

Physics

Quantum Physics

4 pages, 3 figures, REVTeX

Scientific paper

10.1103/PhysRevLett.86.4942

We propose an optical implementation of the Gaussian continuous-variable quantum cloning machines. We construct a symmetric N -> M cloner which optimally clones coherent states and we also provide an explicit design of an asymmetric 1 -> 2 cloning machine. All proposed cloning devices can be built from just a single non-degenerate optical parametric amplifier and several beam splitters.

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