Experimental Demonstration of Decoherence-Free One-Way Information Transfer

Details Experimental Demonstration of Decoherence-Free One-Way Information Transfer Experimental Demonstration of Decoherence-Free One-Way Information Transfer

2007-08-07

arxiv.org/abs/0708.0960v2

Phys. Rev. Lett. 99, 250503 (2007)

Physics

Quantum Physics

5 pages, 3 figures, RevTeX4

Scientific paper

10.1103/PhysRevLett.99.250503

We report the experimental demonstration of a one-way quantum protocol reliably operating in the presence of decoherence. Information is protected by designing an appropriate decoherence-free subspace for a cluster state resource. We demonstrate our scheme in an all-optical setup, encoding the information into the polarization states of four photons. A measurement-based one-way information-transfer protocol is performed with the photons exposed to severe symmetric phase-damping noise. Remarkable protection of information is accomplished, delivering nearly ideal outcomes.

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