Results 1 - 20 of 617.
Physics - 30.12.2020
Physicists convince with their study in optics and photonics
A publication by researchers led by physicist Prof. Cornelia Denz is among the world's 30 most groundbreaking papers of 2020, according to the journal Optics & Photonics News. In its special annual end-of-year issue, the journal selects the research highlights of the past year in the fields of optics and photonics.
Physics - Materials Science - 29.12.2020
Detective work in theoretical physics
Scientific articles in the field of physics are mostly very short and deal with a very restricted topic. A remarkable exception to this is an article published recently by physicists from the Universities of Münster and Düsseldorf. The article is 127 pages long, cites a total of 1075 sources and deals with a wide range of branches of physics - from biophysics to quantum mechanics.
Life Sciences - Physics - 29.12.2020
Sugars influence cell-to-surface adhesion
How can cells adhere to surfaces and move on them? This is a question which was investigated by an international team of researchers headed by Prof. Michael Hippler from the University of Münster and Prof. Kaiyao Huang from the Institute of Hydrobiology (Chinese Academy of Sciences, Wuhan, China).
Physics - 28.12.2020
Fermilab and partners achieve sustained, high-fidelity quantum teleportation
A viable quantum internet-a network in which information stored in qubits is shared over long distances through entanglement-would transform the fields of data storage, precision sensing and computing, ushering in a new era of communication. This month, scientists at Fermi National Accelerator Laboratory-a U.S. Department of Energy national laboratory affiliated with the University of Chicago-along with partners at five institutions took a significant step in the direction of realizing a quantum internet.
Astronomy / Space Science - Physics - 24.12.2020
Ripples in space-time could provide clues to missing components of the universe
UChicago scientist lays out how LIGO gravitational waves could be scrambled, yielding information There's something a little off about our theory of the universe. Almost everything fits, but there's a fly in the cosmic ointment, a particle of sand in the infinite sandwich. Some scientists think the culprit might be gravity-and that subtle ripples in the fabric of space-time could help us find the missing piece.
Physics - Materials Science - 22.12.2020
Berkeley Lab’s Top 10 Science Stories of 2020
It was a year dominated by COVID-19 research, along with some beetles, batteries, and a Nobel Prize T he coronavirus pandemic has taught us many valuable lessons this year, and perhaps foremost among them is the importance of science. Researchers at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have always strived to find science-based solutions for society's most pressing issues.
Astronomy / Space Science - Physics - 22.12.2020
How Nearby Galaxies Form Their Stars
How stars form in galaxies remains a major open question in astrophysics. A new UZH study sheds new light on this topic with the help of a data-driven re-analysis of observational measurements. The star-formation activity of typical, nearby galaxies is found to scale proportionally with the amount of gas present in these galaxies.
Physics - Computer Science - 21.12.2020
Multiparty entanglement: when everything is connected
'Entanglement' is a ubiquitous concept in modern physics research: it occurs in subjects ranging from quantum gravity to quantum computing. In a publication that appeared in Physical Review Letters last week, UvA-IoP physicist Michael Walter and his collaborator Sepehr Nezami shed new light on the properties of quantum entanglement - in particular when many particles are involved.
Physics - Chemistry - 21.12.2020
The Mechanics of the Immune System
When T-cells of our immune system become active, tiny traction forces at the molecular level play an important role. They have now been studied at TU Wien. Highly complicated processes constantly take place in our body to keep pathogens in check: The T-cells of our immune system are busy searching for antigens - suspicious molecules that fit exactly into certain receptors of the T-cells like a key into a lock.
Physics - 21.12.2020
When light and atoms share a common vibe
Scientists from EPFL, MIT, and CEA Saclay demonstrate a state of vibration that exists simultaneously at two different times. They evidence this quantum superposition by measuring the strongest class of quantum correlations between light beams that interact with the vibration. An especially counter-intuitive feature of quantum mechanics is that a single event can exist in a state of superposition - happening bothhere andthere , or bothtoday andtomorrow .
Physics - Chemistry - 21.12.2020
Speeding Toward Improved Hydrogen Fuel Production
A new nanomaterial helps obtain hydrogen from a liquid energy carrier, in a key step toward a stable and clean fuel source Hydrogen is a sustainable source of clean energy that avoids toxic emissions and can add value to multiple sectors in the economy including transportation, power generation, metals manufacturing, among others.
Physics - Mathematics - 18.12.2020
UofG researchers set out for New Horizons
Researchers from the University of Glasgow's College of Science & Engineering are sharing in new funding for adventurous, high-risk research. Four projects from three Schools have received support from the £25.5m New Horizons fund, administered by the Engineering and Physical Science Research Council (EPSRC).
Physics - Chemistry - 18.12.2020
Artificial Intelligence Solves Schrödinger’s Equation
Scientists at Freie Universität Berlin develop a deep learning method to solve a fundamental problem in quantum chemistry No 255/2020 from Dec 18, 2020 A team of scientists at Freie Universität Berlin has developed an artificial intelligence (AI) method for calculating the ground state of the Schrödinger equation in quantum chemistry.
Physics - Materials Science - 17.12.2020
Physics breakthrough of the year
International Team is awarded the Breakthrough of the Year 2020 prize by Physics World magazine Light For the development of a light-emitting silicon alloy, researchers from TU Eindhoven, Netherlands and the University of Jena, Germany together with partners from the University of Linz and TU Munich, are today (17 December) being awarded the " Breakthrough of the Year " prize by Physics World magazine.
Physics - 17.12.2020
CEA-Leti Papers at IEDM 2020 Highlight Progress in Overcoming Challenges
Gallium Nitride Seen as Highly Efficient Replacement for Silicon in Wide Range of Consumer and Industrial Uses GRENOBLE , France - Dec. Two complementary research papers from CEA-Leti confirmed that the institute's approach to gallium-nitride (GaN) technologies is on track overcome challenges in the architecture and performance of advanced GaN devices embedding a MOS gate, and targeting the fast-growing global market for power-conversion systems.
Astronomy / Space Science - Physics - 17.12.2020
On the hunt for a missing giant black hole
The mystery surrounding the whereabouts of a supermassive black hole has deepened. Despite searching with NASA's Chandra X-ray Observatory and Hubble Space Telescope, astronomers have no evidence that a distant black hole estimated to weigh between 3 billion and 100 billion times the mass of the sun is anywhere to be found.
Physics - Electroengineering - 16.12.2020
Information transport via magnons
Pseudospin in antiferromagnets: new perspectives for information technologies Elementary particles carry an intrinsic angular momentum known as their spin. For an electron, the spin can take only two particular values relative to a quantization axis, letting us denote them as spin-up and spin-down electrons.
Physics - Materials Science - 16.12.2020
Big step with small whirls
Skyrmions are small magnetic objects that could revolutionize the data storage industry and also enable new computer architectures. However, before they can be utilized in such applications, there are still a number of challenges that need to be overcome. A team of Empa researchers has now succeeded for the first time in producing a tunable multilayer system in which two different types of skyrmions - the future bits for "0" and "1" - can exist at room temperature, as they recently reported in the renowned .
Computer Science - Physics - 15.12.2020
A.I. model shows promise to generate faster, more accurate weather forecasts
Today's weather forecasts come from some of the most powerful computers on Earth. The huge machines churn through millions of calculations to solve equations to predict temperature, wind, rainfall and other weather events. A forecast's combined need for speed and accuracy taxes even the most modern computers.
Physics - Health - 15.12.2020
Functionalized Bead Assay to Measure Three-dimensional Traction Forces during T-cell Activation
An international team of researcher developed a traction force microscopy platform which allows for quantifying the pulls and pushes exerted via T-cell microvilli, in both tangential and normal directions, during T-cell activation Mechanical forces play a vital role for many biological mechanisms, such as the sensation of infected cells by T-cells.