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arXiv · 1007.4996

Hyperentangled mixed phased Dicke states: optical design and detection

A. Chiuri·G. Vallone·N. Bruno·C. Macchiavello·D. Bruß·P. Mataloni
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Abstract

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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A. Chiuri, G. Vallone, N. Bruno, C. Macchiavello, D. Bruß, P. Mataloni. 2010-07-28. Hyperentangled mixed phased Dicke states: optical design and detection. https://doi.org/10.1103/physrevlett.105.250501

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