Researchers at the University of Vienna and the Austrian Academy of Sciences develop a new theoretical framework to describe how causal structures in quantum mechanics transform. They analyse under which conditions quantum mechanics allows the causal…

Light can propagate with complex spatial structures, which allow for encoding information beyond one bit per photon. This could significantly increase data rates compared to today's communication technology. To exploit this, however, new methods must…

Vienna, 24-27 September

Whether there exists something ‘real’ to be described by science is one of the oldest question in philosophy of science, and it is one of the fundamental pillars on which scientific disciplines are built. In particular, are theoretical entities…

Communication requires to embody information into a physical system, the so-called information carrier. Classically, the information carrier can only travel from a sender to the receiver, resulting in a “one-way” communication. Theoretical physicists…

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Quantum entanglement is a key feature of a quantum computer. Yet, how can we verify that a quantum computer indeed incorporates a large-scale entanglement? Using conventional methods is hard since they require a large number of repeated measurements.…

Some months ago, Mario Krenn, Anton Zeilinger and colleagues at the IQOQI and at the University of Vienna developed the algorithm Melvin, which can automatically design new quantum experiments for which the human scientists had no answer until then…

In a newly released publication in the science journal Physical Review Letters, researchers from the Austrian Academy of Sciences, the University of Vienna and the Chinese Academy of Sciences describe how they prepared and carried out the world's…