Engineering a C-phase quantum gate: optical design and experimental realization

Year: 2012

Authors: Chiuri A., Greganti C., Mataloni P.

Autors Affiliation: Dipartimento di Fisica, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Roma, Italy; Istituto Nazionale di Ottica (INO-CNR), L.go E. Fermi 6, 50125 Firenze, Italy

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.

Journal/Review: EUROPEAN PHYSICAL JOURNAL D

Volume: 66 (7)      Pages from: 195  to: 195

More Information: Publisher: SPRINGER, 233 SPRING ST, NEW YORK, NY 10013 USA
DOI: 10.1140/epjd/e2012-20728-x
KeyWords: EXPERIMENTAL ENTANGLEMENT; STATES; Atomic
DOI: 10.1140/epjd/e2012-20728-x

Citations: 1
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