Experimental demonstration of decoherence-free one-way information transfer

R. Prevedel, Mark Tame, A. Stefanov, Mauro Paternostro, Myungshik Kim, A. Zeilinger

Research output: Contribution to journalArticlepeer-review

39 Citations (Scopus)


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.
Original languageEnglish
Article number250503
Pages (from-to)250503-250504
Number of pages2
JournalPhysical Review Letters
Issue number25
Publication statusPublished - 19 Dec 2007

ASJC Scopus subject areas

  • General Physics and Astronomy


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