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Cyclic transformation of orbital angular momentum modes
Florian Schlederer, Mario Krenn, Robert Fickler +2
The spatial modes of photons are one realization of a QuDit, a quantum system that is described in a D-dimensional Hilbert space. In order to perform quantum information tasks with…
Finite-key security analysis for multilevel quantum key distribution
Kamil Bradler, Mohammad Mirhosseini, Robert Fickler +2
We present a detailed security analysis of a d-dimensional quantum key distribution protocol based on two and three mutually unbiased bases (MUBs) both in an asymptotic and finite…
Multi-photon entanglement in high dimensions
Mehul Malik, Manuel Erhard, Marcus Huber +3
Entanglement lies at the heart of quantum mechanics as a fundamental tool for testing its deep rift with classical physics, while also providing a key resource for quantum tech…
Automated Search for new Quantum Experiments
Mario Krenn, Mehul Malik, Robert Fickler +2
Quantum mechanics predicts a number of at first sight counterintuitive phenomena. It is therefore a question whether our intuition is the best way to find new experiments. Here we…
Twisted photon entanglement through turbulent air across Vienna
Mario Krenn, Johannes Handsteiner, Matthias Fink +2
Photons with a twisted phase front can carry a discrete, in principle unbounded amount of orbital angular momentum (OAM). The large state space allows for complex types of entangle…