Scientists led by Peter Zoller have developed a new tool for the measurement of entanglement in many-body systems and demonstrated it in experiments. The method enables the study of previously inaccessible physical phenomena and could contribute to a better understanding of quantum materials. The work has now been published in Nature.
Scientists at the University of Innsbruck have been studying the water cycle and glaciers in the Andes near Huaraz in northern Peru for a long time. They recently documented a previously unreported rainfall phenomenon. These light rainfalls, known locally as "Pushpa", mark the beginning of the sowing season. Their unpredictability from one year to the next complicates matters for farmers, a situation potentially worsened by climate change.
Researchers from the Universities of Innsbruck and Waterloo have studied the environmental impact of artificial snowmaking and its effect on the sustainability of ski tourism with Canada as an example. High water and energy consumption and the associated CO2 emissions are a burden on the environmental balance sheet; energy from renewable sources can make winter sports considerably more sustainable.
It is rare to find glaciers bounded on land by vertical ice cliffs. These ice cliffs respond with particular sensitivity to environmental changes. Research teams from Tyrol and Styria are investigating ice formations at a site in the far north of Greenland. The researchers intend to draw conclusions about the development of the Arctic climate based on the changes in the glacier walls.
In physics, quasiparticles are used to describe complex processes in solids. In ultracold quantum gases, these quasiparticles can be reproduced and studied. Now, for the first time, Austrian scientists led by Rudolf Grimm have been able to observe in experiments how Fermi polarons – a special type of quasiparticle – can interact with each other. Their findings have been published in Nature Physics.
In a groundbreaking collaboration, two world-leading research groups, one led by Francesca Ferlaino and one by Markus Greiner, have joined force to develop an advanced quantum gas microscope for magnetic quantum matter. This state-of-the-art instrument reveals intricate dipolar quantum phases shaped by the interactions as reported in Nature.
Two recent scientific studies led by Dr. Paul Wilcox from the Department of Geology at the University of Innsbruck provide new insights into Earth's climate dynamics, with a particular focus on the El Niño phenomenon. The results show how El Niño responds to natural factors over extended periods, while highlighting the increasing role of human activities in shaping this climatic phenomenon in the modern era.
When the large highways crossing the Austrian and Swiss Alps were built, citizens’ movements protesting the transalpine traffic started to form in both countries from the 1970s onwards. They found common ground in blaming EU policy but overall employed distinct methods, also with varying success, and never really joined forces. In a recent project, historians in Innsbruck, Basel and Munich made these two environmental initiatives the subject of their comparative research.
In order to obtain information about dark matter and dark energy from the huge amounts of data to be generated by the new ESA probe Euclid, Innsbruck astrophysicist Laila Linke and her team are using novel statistical methods. As soon as Euclid sends its first data to Earth, the researchers intend to have a tool ready to gain new information on the most important questions concerning the invisible side of the cosmos.
In the summer of 2022, one of Tyrol's largest glaciers experienced its most significant loss of mass on record. Last year, the Hintereisferner in Tyrol, Austria, reached its Glacier Loss Day (GLD) earlier than ever before. The GLD serves as an indicator of a glacier's health throughout the year, similar to how the Earth Overshoot Day measures Earth's resource consumption. Annelies Voordendag, together with a team of glaciologists at the Department for Atmospheric and Cryospheric Sciences at the University of Innsbruck, employs cutting-edge laser scanning techniques to determine the GLD.
For his research on the influence of biodiversity on long-term forest dynamics, Rubén D. Manzanedo has been awarded a Starting Grant from the European Research Council (ERC). Currently a researcher at ETH Zurich, Dr. Manzanedo applied for the grant, which is endowed with around 1.5 million euros, through the University of Innsbruck.
Quantum physics has allowed for the creation of sensors far surpassing the precision of classical devices. Now, several studies in Nature show that the precision of these quantum sensors can be significantly improved using entanglement produced by finite-range interactions. Innsbruck researchers led by Christian Roos were able to demonstrate this enhancement using entangled ion-chains with up to 51 particles.
Researchers from Austria and USA have designed a new type of quantum computer that uses fermionic atoms to simulate complex physical systems. The processor uses programmable neutral atom arrays and is capable of simulating fermionic models in a hardware-efficient manner using fermionic gates. The team led by Peter Zoller demonstrated how the new quantum processor can efficiently simulate fermionic models from quantum chemistry and particle physics.
How active compounds affect RNA and thus the expression of genes is of great interest for the development of potential therapeutics. Innsbruck chemists have now used a method they recently developed to study the binding of the aminoglycoside Neomycin B to a so-called mRNA riboswitch.
Soil is the largest natural carbon storage in the world. In Northern ecosystems particularly large amounts of carbon are stored, but they are also particularly strongly affected by global warming. A recently published study by an international team led by Michael Bahn of the University of Innsbruck investigated how ongoing warming affects the uptake and release of carbon dioxide in subarctic grassland. The researchers used a geothermally active area in Iceland as a natural „climate chamber”.
Anions, negatively charged ions, are reluctant to be cooled. Physicists led by Matthias Weidemüller from Heidelberg University and Roland Wester from the University of Innsbruck have now developed a method for cooling molecular anions to below 3 Kelvin in a remarkably short time. This enables, for example, new investigations of chemical reactions in space.