We report the experimental demonstration of two quantum networking protocols, namely quantum 1 -> 3 telecloning and open-destination teleportation, implemented using a four-qubit register whose state is encoded in a high-quality two-photon hyperentangled Dicke state. The state resource is characterized using criteria based on multipartite entanglement witnesses. We explore the characteristic entanglement-sharing structure of a Dicke state by implementing high-fidelity projections of the four-qubit resource onto lower-dimensional states. Our work demonstrates for the first time the usefulness of Dicke states for quantum information processing.
Experimental Quantum Networking Protocols via Four-Qubit Hyperentangled Dicke States / A., Chiuri; C., Greganti; M., Paternostro; G., Vallone; Mataloni, Paolo. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 109:17(2012). [10.1103/physrevlett.109.173604]
Experimental Quantum Networking Protocols via Four-Qubit Hyperentangled Dicke States
MATALONI, Paolo
2012
Abstract
We report the experimental demonstration of two quantum networking protocols, namely quantum 1 -> 3 telecloning and open-destination teleportation, implemented using a four-qubit register whose state is encoded in a high-quality two-photon hyperentangled Dicke state. The state resource is characterized using criteria based on multipartite entanglement witnesses. We explore the characteristic entanglement-sharing structure of a Dicke state by implementing high-fidelity projections of the four-qubit resource onto lower-dimensional states. Our work demonstrates for the first time the usefulness of Dicke states for quantum information processing.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.