How can different actors make joint decisions when they have different information or face uncertainties? This and other questions are tackled by mathematician and theoretical economist Dr. Florian Brandl, who will take up an Argelander Professorship at the University of Bonn on April 1 and at the same time start as a Bonn Junior Fellow at the Hausdorff Center for Mathematics. He is the first researcher to hold such a professorship, as these are new positions created by the University of Bonn for outstanding up-and-coming professors who distinguish themselves by combining different disciplines. In Florian Brandl's research, these are mathematics, economics and computer science.

Fossil sites sometimes resemble a living room table on which half a dozen different jigsaw puzzles have been dumped: It is often difficult to say which bone belongs to which animal. Together with colleagues from Switzerland, researchers from the University of Bonn have now presented a method that allows a more certain answer to this question. Their results are published in the journal Palaeontologia Electronica.

Encrypting data in a way that ensures secure communication is an ever-growing challenge because crucial components of today's encryption systems cannot withstand future quantum computers. Researchers around the world are therefore working on technologies for novel encryption methods that are also based on quantum effects. The phenomenon of so-called quantum entanglement plays a particularly important role here. This means that in a quantum network, the stationary qubits of the network are entangled with the communication channel, which usually consists of photons (light particles). For the first time, physicists at the University of Bonn have now been able to demonstrate quantum entanglement between a stationary qubit, i.e. a two-state quantum system, and a photon with direct coupling to an optical fiber. The study has been published in the journal "npj Quantum Information".

The Electoral Assembly of the University of Bonn has elected four female and zwo male vice rectors who will take office in May 2021. The Assembly, consisting of members of the Senate and the University Council, convened online due to the pandemic. Voting took place by postal ballot.

A research team of pharmacists at the University of Bonn has discovered two families of active substances that can block the replication of the SARS-CoV-2 coronavirus. The drug candidates are able to switch off the the key enzyme of the virus, the so-called main protease. The study is based on laboratory experiments. Extensive clinical trials are still required for their further development as therapeutic drugs. The results have now been published in the journal "Angewandte Chemie".

"Everyone’s unique" is a popular maxim. All people are equal, but there are of course individual differences. This was no different with dinosaurs. A study by researchers at the University of Bonn and the Dinosaur Museum Frick in Switzerland has now revealed that the variability of Plateosaurus trossingensis was much greater than previously assumed. The paleontologists examined a total of 14 complete skulls of this species, eight of which they described for the first time. The results have now been published in the scientific journal "Acta Palaeontologica Polonica".

Making a decision involves risks and uncertainties - as everyone experiences in their everyday lives. In pandemic times, however, the complexity of decisions and the many uncertainties that come together from different areas become all too apparent. A team of economists, epidemiologists, mathematicians and financial experts has now joined forces at the University of Bonn to bring their individual models together and calculate uncertainties. The goal: Making decisions based on a wider range of information. The Transdisciplinary Research Unit "Mathematics, Modelling and Simulation of Complex Systems" at the University of Bonn is funding the project with nearly 100,000 euros over two years. The results may be relevant for policy advice.

Together with the University of Bonn, UNESCO has established the UNESCO Chair in Human-Water Systems. It will be held by the geographer Prof. Dr. Mariele Evers. This means that Germany is now home to 14 UNESCO Chairs that contribute to the implementation of the Global Sustainability Agenda.