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Violation of local realism with freedom of choice
Thomas Scheidl, Rupert Ursin, Johannes Kofler +8
Bell's theorem shows that local realistic theories place strong restrictions on observable correlations between different systems, giving rise to Bell's inequality which can be vio…
Comment on: Testing the speed of 'spooky action at a distance'
Johannes Kofler, Rupert Ursin, Caslav Brukner +1
In a recent experiment, Salart et al. addressed the important issues of the speed of hypothetical communication and of reference frames in Bell-type experiments. The authors report…
Quantum teleportation and entanglement swapping with linear optics logic gates
Christian Schmid, Nikolai Kiesel, Ulrich K. Weber +3
We report on the usage of a linear optics phase gate for distinguishing all four Bell states simultaneously in a quantum teleportation and entanglement swapping protocol. This is d…
Space-QUEST: Experiments with quantum entanglement in space
Rupert Ursin, Thomas Jennewein, Johannes Kofler +36
The European Space Agency (ESA) has supported a range of studies in the field of quantum physics and quantum information science in space for several years, and consequently we hav…
Experimental verification of the feasibility of a quantum channel between Space and Earth
Paolo Villoresi, Thomas Jennewein, Fabrizio Tamburini +8
Extending quantum communication to Space environments would enable to perform fundamental experiments on quantum physics as well as applications of quantum information at planetary…