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Results 21 - 40 of 457.


Physics - Materials Science - 21.03.2024
New Method for Analysing Nanoporous Materials
New Method for Analysing Nanoporous Materials
Using only a single electron microscope image, researchers at TU Graz can determine the type and exact position of so-called guest atoms in high-tech materials. They also come closer to solving the mystery of the blue colour of aquamarine. In addition to their main components, the properties of crystalline and nanoporous materials often depend crucially on guest atoms or ions that are embedded in the tiny pores of their lattice structure.

Physics - 18.03.2024
Holographic message encoded in simple plastic
Holographic message encoded in simple plastic
Important data, such as a Bitcoin wallet address, can be stored and concealed quite easily in ordinary plastic using 3D printers and terahertz radiation, scientists at TU Wien show. There are many ways to store data - digitally, on a hard disk, or using analogue storage technology, for example as a hologram.

Physics - Chemistry - 12.03.2024
Ultra-short light pulses enable high-precision 'artificial nose'
Ultra-short light pulses enable high-precision ’artificial nose’
A new spectroscopy method has been developed at TU Wien: Using a series of laser pusles, chemical analyses can be carried out much faster and more precisely than before. Whether you want to analyze environmental samples in nature or monitor a chemical experiment, you often need highly sensitive sensors that can "sniff out" even tiny traces of a certain gas with extreme accuracy.

Physics - Pharmacology - 11.03.2024
Can quantum computers help in the development of new drugs?
Can quantum computers help in the development of new drugs?
Scientists predict that quantum computers will be able to discover drugs faster than conventional computers in the future Quantum computers have promising potential applications. One potential area of application is computer-aided research and development of new drugs. A team from the University of Vienna, together with researchers from Boehringer Ingelheim, BASF, Google, QC Ware and the University of Toronto, have investigated the possibilities of this technology in a review article published in the journal Nature Physics .

Physics - 04.03.2024
Network of quantum sensors increases precision
Network of quantum sensors increases precision
Quantum sensor technology promises even more precise measurements of physical quantities. A team led by Christian Roos at the University of Innsbruck has now compared the signals of up to 91 quantum sensors with each other and thus successfully suppressed the noise caused by interactions with the environment.

Materials Science - Physics - 27.02.2024
TU Graz Develops Innovative Coating against Ice
TU Graz Develops Innovative Coating against Ice
The material delays the formation of ice crystals and reduces the adhesion of ice layers. Thanks to an innovative production method, the coating is very robust and adheres to numerous surfaces. Ice-repellent coatings have been around for some time, but until now they have been very sensitive and detach quite quickly from the surfaces they are meant to protect.

Physics - Astronomy / Space - 19.02.2024
Quantum entanglement defies weightlessness
Quantum entanglement defies weightlessness
The ÖAW and TU Vienna were able to show during a parabolic flight: A change in gravity has no influence on quantum experiments . A team from the Austrian Academy of Sciences and the Vienna University of Technology was able to prove this during a flight with the European Space Agency: Quantum entanglement also works when the strength of gravity changes.

Physics - Electroengineering - 19.02.2024
Spintronics: the electronics of the future could be antiferromagnetic
Spintronics: the electronics of the future could be antiferromagnetic
It is an important step forward in spintronics: the magnetic state of certain materials can be switched using surface induced strain. All our electronics are based on electrical charges being transported from one place to another. Electrons move, current flows, signals are transmitted by applying an electrical voltage.

Health - Physics - 18.01.2024
New technique visualises mechanical structure of the cell nucleus for the first time
New technique visualises mechanical structure of the cell nucleus for the first time
The cell nucleus is considered to be the control centre of vital cellular processes, but its material properties continue to puzzle scientists. An international research team led by MedUni Vienna has now developed a new technique that provides a previously unattainable view of the mechanical properties inside this control centre.

Materials Science - Physics - 17.01.2024
TU Graz Researchers Optimize 3D Printing of Optically Active Nanostructures
TU Graz Researchers Optimize 3D Printing of Optically Active Nanostructures
The shape, size and optical properties of 3-dimensional nanostructures can now be simulated in advance before they are produced directly with high precision on a wide variety of surfaces. For around 20 years, it has been possible to modify surfaces via nanoparticles so that they concentrate or manipulate light in the desired way or trigger other reactions.

Physics - Chemistry - 11.01.2024
First Direct Imaging of Small Noble Gas Clusters at Room Temperature
First Direct Imaging of Small Noble Gas Clusters at Room Temperature
Novel opportunities in quantum technology and condensed matter physics opened by noble gas atoms confined between graphene layers For the first time, scientists have succeeded in the stabilisation and direct imaging of small clusters of noble gas atoms at room temperature. This achievement opens up exciting possibilities for fundamental research in condensed matter physics and applications in quantum information technology.

Physics - 10.01.2024
Obser­ving macros­co­pic quan­tum effects in the dark
Obser­ving macros­co­pic quan­tum effects in the dark
Be fast, avoid light, and roll through a curvy ramp: This is the recipe for a pioneering experiment proposed by theoretical physicists in a recent paper published in Physical Review Letters. An object evolving in a potential created through electrostatic or magnetic forces is expected to rapidly and reliably generate a macroscopic quantum superposition state.

Physics - Chemistry - 08.01.2024
The rock that creates clouds
The rock that creates clouds
Feldspar is very common in rocks. As atmospheric dust, this mineral contributes efficiently to cloud formation. Researchers at TU Wien have now discovered what happens during this process. Feldspar is a ubiquitous mineral and makes up about half of the Earth's crust. In the Earth's atmosphere, feldspars play a surprisingly important role.

Physics - 21.12.2023
Clarified at last: the physics of popping champagne
Clarified at last: the physics of popping champagne
When you uncork a bottle of champagne, complex supersonic phenomena occur. Scientists at TU Wien have now been able to calculate exactly what happens for the first time. It sounds like a simple, well-known everyday phenomenon: there is high pressure in a champagne bottle, the stopper is driven outwards by the compressed gas in the bottle and flies away with a powerful pop.

Physics - Electroengineering - 20.12.2023
Unconventional magnets: stress reduces frustration
Unconventional magnets: stress reduces frustration
An international research team recently demonstrated how magnetism can be actively changed by pressure. Magnetism occurs depending on how electrons behave. For example, the elementary particles can generate an electric current with their charge and thereby induce a magnetic field. However, magnetism can also arise through the collective alignment of the magnetic moments (spins) in a material.

Physics - Materials Science - 06.12.2023
In Search of the Perfect Mirror at Mid-Infrared Wavelengths
In Search of the Perfect Mirror at Mid-Infrared Wavelengths
Advanced infrared mirrors enhance climate and biofuel research via precision trace gas sensing. An international team of researchers from the United States, Austria, and Switzerland has demonstrated the first true supermirrors in the mid-infrared spectral region. These mirrors are key for many applications, such as optical spectroscopy for environmental sensing, as well as laser cutting and welding for manufacturing.

Physics - Astronomy / Space - 05.12.2023
Unlocking Neu­tron Star Rota­tion Anoma­lies
Unlocking Neu­tron Star Rota­tion Anoma­lies
A collaboration between quantum physicists and astrophysicists, led by Francesca Ferlaino and Massimo Mannarelli, has achieved a significant breakthrough in understanding neutron star glitches. They were able to numerically simulate this enigmatic cosmic phenomenon with ultracold dipolar atoms. This research establishes a strong link between quantum mechanics and astrophysics and paves the way for quantum simulation of stellar objects from Earth.

Physics - Chemistry - 04.12.2023
Quantum physics: Superconducting Nanowires Detect Single Protein Ions
Quantum physics: Superconducting Nanowires Detect Single Protein Ions
Detection efficiency 1,000 times higher than conventional ion detectors due to high sensitivity An international research team led by quantum physicist Markus Arndt (University of Vienna) has achieved a breakthrough in the detection of protein ions: Due to their high energy sensitivity, superconducting nanowire detectors achieve almost 100% quantum efficiency and exceed the detection efficiency of conventional ion detectors at low energies by a factor of up to a 1,000.

Physics - 29.11.2023
Quan­tum tool opens door to unchar­ted phe­no­mena
Quan­tum tool opens door to unchar­ted phe­no­mena
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 .

Physics - Computer Science - 29.11.2023
Quantum tool opens the door to new phenomena
Quantum tool opens the door to new phenomena
Theoretical predictions of quantum field theory confirmed experimentally for the first time Innsbruck scientists led by Peter Zoller have developed a new tool for determining entanglement in many-particle systems and demonstrated it in an experiment. The method enables investigations of previously inaccessible physical phenomena and can contribute to a better understanding of quantum materials.