Hyperentangled mixed phased Dicke states: optical design and detection

Details Hyperentangled mixed phased Dicke states: optical design and detection Hyperentangled mixed phased Dicke states: optical design and detection

2010-07-28

arxiv.org/abs/1007.4996v1

Phys. Rev. Lett. 105, 250501 (2010)

Physics

Quantum Physics

6 pages, 3 figure, supplementary information included

Scientific paper

10.1103/PhysRevLett.105.250501

We present an experimental method to produce 4-qubit phased Dicke states, based on a source of 2-photon hyperentangled states. By introducing quantum noise in the multipartite system in a controlled way, we have tested the robustness of these states. To this purpose the entanglement of the resulting multipartite entangled mixed states has been verified by using a new kind of structural witness.

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