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6 papers · 2 filters
Experimental quantum teleportation over a high-loss free-space channel
Xiao-Song Ma, Sebastian Kropatschek, William Naylor +5
We present a high-fidelity quantum teleportation experiment over a high-loss free-space channel between two laboratories. We teleported six states of three mutually unbiased bases…
Condition for macroscopic realism beyond the Leggett-Garg inequalities
Johannes Kofler, Caslav Brukner
In 1985, Leggett and Garg put forward the concept of macroscopic realism (macrorealism) and, in analogy to Bell's theorem, derived a necessary condition in terms of inequalities, w…
Quantum erasure with causally disconnected choice
Xiao-song Ma, Johannes Kofler, Angie Qarry +9
The counterintuitive features of quantum physics challenge many common-sense assumptions. In an interferometric quantum eraser experiment, one can actively choose whether or not to…
Einstein-Podolsky-Rosen correlations from colliding Bose-Einstein condensates
Johannes Kofler, Mandip Singh, Maximilian Ebner +3
We propose an experiment which can demonstrate quantum correlations in a physical scenario as discussed in the seminal work of Einstein, Podolsky and Rosen. Momentum-entangled mass…
Quantum teleportation using active feed-forward between two Canary Islands
Xiao-song Ma, Thomas Herbst, Thomas Scheidl +11
Quantum teleportation [1] is a quintessential prerequisite of many quantum information processing protocols [2-4]. By using quantum teleportation, one can circumvent the no-cloning…
Experimental delayed-choice entanglement swapping
Xiao-song Ma, Stefan Zotter, Johannes Kofler +4
Motivated by the question, which kind of physical interactions and processes are needed for the production of quantum entanglement, Peres has put forward the radical idea of delaye…