Engineering a C-Phase quantum gate: optical design and experimental realization
arXiv:1204.2663 · doi:10.1140/epjd/e2012-20728-x
Abstract
A two qubit quantum gate, namely the C-Phase, has been realized by exploiting the longitudinal momentum (i.e. the optical path) degree of freedom of a single photon. The experimental setup used to engineer this quantum gate represents an advanced version of the high stability closed-loop interferometric setup adopted to generate and characterize 2-photon 4-qubit Phased Dicke states. Some experimental results, dealing with the characterization of multipartite entanglement of the Phased Dicke states are also discussed in detail.
accepted for publication on EPJ D
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