Send to

Choose Destination

Links from PubMed

See comment in PubMed Commons below
Phys Rev Lett. 2007 May 4;98(18):180502. Epub 2007 May 4.

Realization and characterization of a two-photon four-qubit linear cluster state.

Author information

  • 1Dipartimento di Fisica dell'Universit√° La Sapienza and Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Roma, 00185 Italy.


We report on the experimental realization of a four-qubit linear cluster state via two photons entangled both in polarization and linear momentum. This state was investigated by performing tomographic measurements and by evaluating an entanglement witness. By use of this state we carried out a novel nonlocality proof, the so-called "stronger two observer all-versus-nothing" test of quantum nonlocality.

PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for American Physical Society
    Loading ...
    Write to the Help Desk