Experimental Demonstration of Decoherence-Free One-Way Information Transfer

Autor(en)

Robert Prevedel, Mark S Tame, André Stefanov, Mauro Paternostro, Myungshik Kim, Anton Zeilinger

Abstrakt

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.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Queen's University Belfast

Journal

Physical Review Letters

Band

99

Anzahl der Seiten

4

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.99.250503

Publikationsdatum

2007

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik, 103025 Quantenmechanik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/5582b04a-08d7-4091-9442-26d8c85dfaeb