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Physics - 10.08.2023

Muon g-2 doubles down with latest measurement, explores uncharted territory in search of new physics
A particle physics experiment decades in the making - the Muon g-2 experiment - looks increasingly like it might set up a showdown over whether there are fundamental particles or forces in the universe that are unaccounted for in the current Standard Model , the comprehensive theory that physicists use to describe how the universe works at its most fundamental level.

Astronomy / Space Science - Physics - 08.08.2023

Gravitational waves may reveal nature of dark matter
Observations of gravitational waves from merging black holes may reveal new insights about dark matter, suggests a new study from a UCL-led international team. The study, presented at the 2023 National Astronomy Meeting in Cardiff and now published in the journal Physical Review D , used computer simulations to study the production of gravitational wave signals in simulated universes with different kinds of dark matter.

Physics - 07.08.2023

The quantum avalanche
At the Vienna University of Technology, it was possible to keep a system that is actually very unstable, consisting of many quantum particles, stable and then release its energy in a targeted manner all at once . These are very special diamonds that are being worked with at TU Wien: Their crystal lattice is not perfectly regular, it contains numerous defects.

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.

Astronomy / Space Science - Physics - 04.08.2023

NASA’s Space-Based Quantum Science Lab Keeps Getting Better
The agency's Cold Atom Lab is getting its second major upgrade and will be using it to explore the quantum realm. On Tuesday, Aug. 1, a major hardware update for NASA's Cold Atom Lab lifted off aboard a Northrop Grumman Cygnus resupply spacecraft on its way to the International Space Station. About the size of a small refrigerator, the lab is sometimes called the coolest place in the known universe because of its ability to chill atoms to almost absolute zero.

Physics - Astronomy / Space Science - 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.

Physics - Materials Science - 02.08.2023

Sensing and controlling microscopic spin density in materials
By fine-tuning the spin density in some materials, researchers may be able to develop new quantum sensors or quantum simulations. Electronic devices typically use the charge of electrons, but spin - their other degree of freedom - is starting to be exploited. Spin defects make crystalline materials highly useful for quantum-based devices such as ultrasensitive quantum sensors, quantum memory devices, or systems for simulating the physics of quantum effects.

Physics - Materials Science - 02.08.2023

Hope for revolutionary high-temperature superconductor lives on
Calculations by TU Vienna show: Newly discovered material LK-99 actually has properties that could be advantageous for superconductivity . LK-99 is the name of the material that is being hotly debated around the world these days: A Korean research group published results at the end of July 2023 suggesting that it could be a superconductor that remains superconducting even at room temperature and normal atmospheric pressure, i.e. conducts electricity completely without electrical resistance.

Physics - Materials Science - 02.08.2023

Hope for revolutionary high-temperature superconductor lives on
Calculations by TU Wien (Vienna) show: Newly discovered material LK-99 indeed has properties that could be advantageous for superconductivity. LK-99 is the name of the material that is being hotly debated around the world these days: A Korean research group published results at the end of July 2023 suggesting that it could be a superconductor even at room temperature and normal atmospheric pressure.

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 - Astronomy / Space Science - 01.08.2023

A magnetic field mystery in space
A new Yale study proposes a way that collisions between asteroids might lead to the formation of metal asteroids able to generate and record magnetism. Yale researchers may have solved a longstanding puzzle as to why certain metallic meteorites show traces of a magnetic field - a finding that may shed light on the formation of magnetic dynamos at the core of planets.

Physics - Chemistry - 31.07.2023

Can rainbows monitor the environment?
New nanotechnology may make it easier to identify the chemical composition of impurities and their geometrical shape in samples of air, liquid and live tissue. Using conventional testing techniques, it can be challenging - sometimes impossible - to detect harmful contaminants such as nano-plastics, air pollutants and microbes in living organisms and natural materials.

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.

Astronomy / Space Science - Physics - 27.07.2023

James Webb Space Telescope sees Jupiter moons in a new light
A spectroscopic map of Ganymede (left) derived from JWST measurements shows light absorption around the poles characteristic of the molecule hydrogen peroxide. A JWST infrared image of Io (right) shows hot volcanic eruptions at Kanehekili Fluctus (center) and Loki Patera (right). The circles outline the surfaces of the two moons.

Physics - Materials Science - 27.07.2023

Some Alloys Don’t Change Size When Heated. We Now Know Why
Nearly every material, whether it is solid, liquid, or gas, expands when its temperature goes up and contracts when its temperature goes down. This property, called thermal expansion, makes a hot air balloon float, and the phenomenon has been harnessed to create thermostats that automatically turn a home furnace on and off.

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.

Physics - Electroengineering - 25.07.2023

New quantum magnet unleashes electronics potential
Researchers discover how to control the anomalous Hall effect and Berry curvature to create flexible quantum magnets for use in computers, robotics, and sensors. Some of our most important everyday items, like computers, medical equipment, stereos, generators, and more, work because of magnets. We know what happens when computers become more powerful, but what might be possible if magnets became more versatile?