Experimental Realization of Dicke States of up to Six Qubits for Multiparty Quantum Networking
- Author(s)
- Robert Prevedel, Gunther Cronenberg, Mark S Tame, Mauro Paternostro, Philip Walther, Myung Sunny Kim, Anton Zeilinger
- Abstract
We report the first experimental generation and characterization of a six-photon Dicke state. The produced state shows a fidelity of F=0.56±0.02 with respect to an ideal Dicke state and violates a witness detecting genuine six-qubit entanglement by 4 standard deviations. We confirm characteristic Dicke properties of our resource and demonstrate its versatility by projecting out four- and five-photon Dicke states, as well as four-photon Greenberger-Horne-Zeilinger and W states. We also show that Dicke states have interesting applications in multiparty quantum networking protocols such as open-destination teleportation, telecloning, and quantum secret sharing.
- Organisation(s)
- Quantum Science
- External organisation(s)
- Queen's University Belfast, Österreichische Akademie der Wissenschaften (ÖAW)
- Journal
- Physical Review Letters
- Volume
- 103
- No. of pages
- 4
- ISSN
- 0031-9007
- DOI
- https://doi.org/10.1103/PhysRevLett.103.020503
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 1030 Physics, Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/ae52c2be-90ea-43b5-b124-00bebc70627f