Results 41 - 60 of 572.
Physics - 13.09.2023
Majority rule in complex mixtures
Göttingen researchers use mathematical model to identify new mechanism for control of phase separation The very first life on earth is thought to have developed from -protocells liquid mixtures of many different types of molecules. Researchers from the University of Göttingen have now shown that in such mixtures, small imbalances in the number of molecules of different types can have an unexpected effect.
Computer Science - Physics - 08.09.2023
Efficient training for artificial intelligence
New physics-based self-learning machines could replace the current artificial neural networks and save energy Artifical intelligence not only affords impressive performance, but also creates significant demand for energy. The more demanding the tasks for which it is trained, the more energy it consumes.
Chemistry - Physics - 28.08.2023
Researchers produce polymers from ballbot-type carbenes for the first time
Chemical on-surface synthesis under extremely clean conditions permits controlled synthesis of N'heterocyclic ballbot-type polymers N'heterocyclic carbenes (NHCs) are small, reactive ring molecules which bond well with metallic surfaces and which, over the past few years, have attracted a great deal of interest in the field of the stable chemical modification of metallic surfaces.
Physics - 24.08.2023
A TÜV for quantum computers
Research team led by physicist from Freie Universität Berlin develops quality tests for quantum computers Quantum technologies, and especially quantum computers, are considered a promising technology for the future. It is hoped that they will solve problems that even the fastest supercomputers are currently practically unable to handle.
Physics - Computer Science - 24.08.2023
Putting Quantum Computers to the Test
A research team led by a physicist at Freie Universität Berlin has developed a series of quality control tests for quantum computers and published a study in Nature Communications on the topic Quantum technologies - and quantum computers in particular - have the potential to shape the development of technology in the future.
Chemistry - Physics - 17.08.2023
Non-toxic cleaner developed for paintings
Organogels: New cleaning agent for artworks investigated with neutrons at the FRM II The restoration of artworks often involves solvents which have toxic properties. Now researchers have succeeded for the first time in creating a non-toxic and sustainable cleaning agent for paintings. Scientists at the Technical University of Munich (TUM) Research Neutron Source Heinz Maier-Leibnitz (FRM II) investigated the structure of the agent, referred to as an organogel.
Physics - Materials Science - 17.08.2023
Pairing of electrons in artificial atoms discovered
Researchers from the Department of Physics at Universität Hamburg, observed a quantum state that was theoretically predicted more than 50 years ago by Japanese theoreticians but so far eluded detection. By tailoring an artificial atom on the surface of a superconductor, the researchers succeeded in pairing the electrons of the so-called quantum dot, thereby inducing the smallest possible version of a superconductor.
Chemistry - Physics - 11.08.2023
Researchers ’film’ novel catalyst at work
Catalysis scheme developed at the University of Bonn is inexpensive, sustainable, and effective A novel catalysis scheme enables chemical reactions that were previously virtually impossible. The method developed at the University of Bonn is also environmentally friendly and does not require rare and precious metals.
Physics - 04.08.2023
Singles become pairs: New insights into the light scattering of atoms
Researchers at the Humboldt University of Berlin have demonstrated a surprising effect present in the fluorescent light of a single atom. Researchers headed by Jürgen Volz and Arno Rauschenbeutel from the Department of Physics at the Humboldt University of Berlin have gained new insights into the scattering of light by a fluorescent atom, which could also be useful for quantum communication.
Physics - Astronomy / Space - 03.08.2023
New World Record: Thinnest Ever Pixel Detector Installed
An international team has fitted the core element of the Belle II experiment at the KEK research center in Japan The Belle II cooperation project at the Japanese research center KEK is helping researchers from all over the world to hunt for new phenomena in particle physics. The international experiment has now reached a major milestone after a team successfully installed a new pixel detector in its final location in Japan.
History / Archeology - Physics - 02.08.2023
Bronze Age Arrowhead from Mörigen was made from Meteorite
Freiburg physicist provided evidence for interdisciplinary project by the Natural History Museum Bern In an interdisciplinary study by the Natural History Museum Bern, led by geologist Beda Hofmann , researchers have proven that a Bronze Age arrowhead found in Mörigen on Lake Biel, Switzerland, was definitely made of meteoritic iron.
Physics - Computer Science - 27.07.2023
Breakthrough in Monte Carlo computer simulations
Researchers develop new algorithm to effectively investigate long-range interacting systems Researchers at Leipzig University have developed a highly efficient method to investigate systems with long-range interactions that were previously puzzling to experts. These systems can be gases or even solid materials such as magnets whose atoms interact not only with their neighbours but also far beyond.
Physics - 26.07.2023
A quick look inside a human being
Physicists at the University of Würzburg have succeeded in making a new imaging technique ready for use on humans. Radioactive markers and radiation are not necessary for this. Imaging techniques such as computed tomography, magnetic resonance imaging, positron emission tomography and ultrasound have become indispensable in the medical world.
Chemistry - Physics - 26.07.2023
Tracing invisible particles
Automated analysis of microplastics How high are concentrations of microplastics in the environment, in our drinking water or in foods? Researchers at the Technical University of Munich (TUM) have developed an automated analysis method for the identification and quantification of particles. Microplastics are everywhere in the environment.
Physics - 26.07.2023
Breakthrough in Monte Carlo computer simulations
Researchers develop new algorithm to effectively study long-range interacting systems. Researchers at the University of Leipzig have developed an extremely efficient method for studying systems with long-range interactions that have been very puzzling to experts until now. These systems can be gases or even solid materials such as magnets, whose atoms interact not only with their neighbors, but much more widely.
Physics - Materials Science - 25.07.2023
A new type of quantum bit in semiconductor nanostructures
Researchers have created a quantum superposition state in a semiconductor nanostructure that might serve as a basis for quantum computing. The trick: two optical laser pulses that act as a single terahertz laser pulse. A German-Chinese research team has successfully created a quantum bit in a semiconductor nanostructure.
Astronomy / Space - Physics - 24.07.2023
Water discovered in rocky planet-forming zone offers clues on habitability
James Webb Space Telescope observations find water for the first time in the inner disk around a young star with giant planets. Using the James Webb Space Telescope, the MPIA-led MINDS research collaboration discovered water in the inner region of a disk of gas and dust around the young star PDS 70.
Astronomy / Space - Physics - 21.07.2023
Novel object in the constellation Shield
The star could be a magnetar with properties that have yet to be explained A new type of stellar object could challenge our understanding of neutron stars. An international team, including researchers from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has discovered a celestial body in the constellation Shield (Scutum) that could be an ultralong-period magnetar, a rare type of star with extremely strong magnetic fields that can produce violent bursts of energy.
Life Sciences - Physics - 21.07.2023
Detection of bacteria and viruses with fluorescent nanotubes
The new sensor design resembles a molecular toolbox that can be used to quickly assemble sensors for a variety of purposes. An interdisciplinary research team from Bochum, Duisburg and Zurich has developed a new approach to construct modular optical sensors which are capable of detecting viruses and bacteria.
Life Sciences - Physics - 17.07.2023
A new perspective in protein research
The ordered areas of proteins are readily studied. Consequently, a great deal is known about the role of these areas in the biological function of the respective proteins. However, an international research team led by biochemist Ute Hellmich has shown that disordered areas are also pivotal. Their comprehensive examination of the disordered area of a receptor channel protein has been published in the renowned scientific journal "Nature Communications." The group demonstrated through eleven different methods how this area influences the function of the entire protein.