262 citations · 507 across the 6 of their papers we have counts for
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Interferometric autocorrelation in the ultra-violet utilizing spontaneous parametric down-conversion
Patrick Michelberger, Roland Krischek, Witlef Wieczorek +2
Autocorrelation is a common method to estimate the duration of ultra-short laser pulses. In the ultra-violet (UV) regime it is increasingly challenging to employ the standard proce…
Loophole-free Bell test for one atom and less than one photon
N. Sangouard, J. -D. Bancal, N. Gisin +4
We consider the entanglement between two internal states of a single atom and two photon number states describing either the vaccum or a single photon and thus containing, on avera…
Experimental implementation of a four-player quantum game
Christian Schmid, Adrian P. Flitney, Witlef Wieczorek +3
Game theory is central to the understanding of competitive interactions arising in many fields, from the social and physical sciences to economics. Recently, as the definition of i…
Experimental Observation of Four-Photon Entangled Dicke State with High Fidelity
Nikolai Kiesel, Christian Schmid, Geza Toth +2
We present the experimental observation of the symmetric four-photon entangled Dicke state with two excitations . A simple experimental set-up allowed quantum state…
Experiments towards Falsification of Noncontextual Hidden Variable Theories
Markus Michler, Harald Weinfurter, Marek Zukowski
We present two experiments testing the hypothesis of noncontextual hidden variables (NCHV's). The first one is based on observation of two-photon pseudo-Greenberger-Horne-Zeilinger…
A posteriori teleportation ?
Dik Bouwmeester, Jian-Wei Pan, Matthew Daniell +3
Braunstein and Kimble observe correctly that, in the Innsbruck experiment, Nature 390, 575 (1997), one does not always observe a teleported photon conditioned on a coincidence reco…