| Literature DB >> 12785878 |
Manfred Eibl1, Sascha Gaertner, Mohamed Bourennane, Christian Kurtsiefer, Marek Zukowski, Harald Weinfurter.
Abstract
We observe polarization entanglement between four photons produced from a single down-conversion source. The nonclassical correlations between the measurement results violate a generalized Bell inequality for four qubits. The characteristic properties and its easy generation with high interferometric contrast make the observed four-photon state well suited for implementing advanced quantum communication schemes such as multiparty quantum key distribution, secret sharing, and telecloning.Year: 2003 PMID： 12785878 DOI： 10.1103/PhysRevLett.90.200403
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161