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arXiv · 0710.3720

Operational determination of multi-qubit entanglement classes via tuning of local operations

T. Bastin·C. Thiel·J. von Zanthier·L. Lamata·E. Solano·G. S. Agarwal
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Abstract

We present a physical setup with which it is possible to produce arbitrary symmetric long-lived multiqubit entangled states in the internal ground levels of photon emitters, including the paradigmatic GHZ and W states. In the case of three emitters, where each tripartite entangled state belongs to one of two well-defined entanglement classes, we prove a one-to-one correspondence between well-defined sets of experimental parameters, i.e., locally tunable polarizer orientations, and multiqubit entanglement classes inside the symmetric subspace.

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T. Bastin, C. Thiel, J. von Zanthier, L. Lamata, E. Solano, G. S. Agarwal. 2009-01-12. Operational determination of multi-qubit entanglement classes via tuning of local operations. https://doi.org/10.1103/physrevlett.102.053601

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