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arXiv · 0906.2233

Experimental Entanglement and Nonlocality of a Two-Photon Six-Qubit Cluster State

Raino Ceccarelli·Giuseppe Vallone·Francesco De Martini·Paolo Mataloni·Adan Cabello
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Abstract

We create a six-qubit linear cluster state by transforming a two-photon hyperentangled state in which three qubits are encoded in each particle, one in the polarization and two in the linear momentum degrees of freedom. For this state, we demonstrate genuine six-qubit entanglement, persistency of entanglement against the loss of qubits, and higher violation than in previous experiments on Bell inequalities of the Mermin type.

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Raino Ceccarelli, Giuseppe Vallone, Francesco De Martini, Paolo Mataloni, Adan Cabello. 2009-10-19. Experimental Entanglement and Nonlocality of a Two-Photon Six-Qubit Cluster State. https://doi.org/10.1103/physrevlett.103.160401

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