title: Experimental characterization of a non-local convertor for quantum photonic networks.
abstract: We experimentally characterize a quantum photonic gate that is capable of converting multiqubit entangled states while acting only on two qubits. It is an important tool in large quantum networks, where it can be used for re-wiring of multipartite entangled states or for generating various entangled states required for specific tasks. The gate can be also used to generate quantum information processing resources, such as entanglement and discord. In our experimental demonstration, we characterized the conversion of a linear four-qubit cluster state into different entangled states, including GHZ and Dicke states. The high quality of the experimental results show that the gate has the potential of being a flexible component in distributed quantum photonic networks.
authors.forename: Michal
authors.initials: M
authors.lastname: Mičuda
authors.forename: Robert
authors.initials: R
authors.lastname: Stárek
authors.forename: Petr
authors.initials: P
authors.lastname: Marek
authors.forename: Martina
authors.initials: M
authors.lastname: Miková
authors.forename: Ivo
authors.initials: I
authors.lastname: Straka
authors.forename: Miroslav
authors.initials: M
authors.lastname: Ježek
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Tashima
authors.forename: Şahin K
authors.initials: ŞK
authors.lastname: Özdemir
authors.forename: Mark
authors.initials: M
authors.lastname: Tame