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High-fidelity entanglement swapping with fully independent sources
Rainer Kaltenbaek, Robert Prevedel, Markus Aspelmeyer +1
Entanglement swapping allows to establish entanglement between independent particles that never interacted nor share any common past. This feature makes it an integral constituent…
Anti-symmetrization reveals hidden entanglement
Alessandro Fedrizzi, Thomas Herbst, Markus Aspelmeyer +3
Two-photon anti-bunching at a beamsplitter is only possible if the photons are entangled in a specific state, anti-symmetric in the spatial modes. Thus, observation of anti-bunchin…
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…
Heralded generation of multiphoton entanglement
Philip Walther, Markus Aspelmeyer, Anton Zeilinger
We present a scheme, based only on linear optics and standard photon detection, that allows to generate heralded multiphoton entangled states of arbitrary photon number from sponta…
Establishing EPR-channels between Nanomechanics and Atomic Ensembles
K. Hammerer, M. Aspelmeyer, E. S. Polzik +1
We suggest to interface nanomechanical systems via an optical quantum bus to atomic ensembles, for which means of high precision state preparation, manipulation and measurement are…
Photonic entanglement as a resource in quantum computation and quantum communication
Robert Prevedel, Markus Aspelmeyer, Caslav Brukner +2
Entanglement is an essential resource in current experimental implementations for quantum information processing. We review a class of experiments exploiting photonic entanglement,…