title: Simultaneous minimum-uncertainty measurement of discrete-valued complementary observables.
abstract: We have made the first experimental demonstration of the simultaneous minimum uncertainty product between two complementary observables for a two-state system (a qubit). A partially entangled two-photon state, where each of the photons carries (partial) information of the initial state, was used to perform such a measurement.
authors.affiliation: Department of Electronics, Royal Institute of Technology (KTH), Electrum 229, SE-164 40 Kista, Sweden. alexi@ele.kth.se
authors.forename: A
authors.initials: A
authors.lastname: Trifonov
authors.forename: G
authors.initials: G
authors.lastname: Björk
authors.forename: J
authors.initials: J
authors.lastname: Söderholm