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News from the Lab (news.myScience.ch)

  • News from the Lab’ is a selection of scientific works that are significant or interesting for a broad readership. 
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Physics



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Physics - Materials Science - 13.05.2022
Quantum one-way street in topological insulator nanowires
Very thin wires made of a topological insulator could enable highly stable qubits, the building blocks of future quantum computers. Scientists see a new result in topological insulator devices as an important step towards realising the technology's potential / publication in 'Nature Nanotechnology' An international group of scientists have demonstrated that wires more than 100 times thinner than a human hair can act like a quantum one-way street for electrons when made of a peculiar material known as a topological insulator.

Astronomy / Space Science - Physics - 12.05.2022
An image of the Milky Way's black hole
An image of the Milky Way’s black hole
Observation with the Event Horizon Telescope improves our understanding of the processes at the galactic centre It sits deep in the heart of the Milky Way, is 27,000 light years from Earth, and resembles a doughnut. This is how the black hole at the centre of our galaxy appears in the image obtained by researchers using the Event Horizon Telescope (EHT).

Physics - Innovation - 11.05.2022
Physicists study optically induced quantum dynamics in single-photon emitters
Physicists study optically induced quantum dynamics in single-photon emitters
For tomorrow's quantum technologies: hexagonal boron nitride under the magnifying glass / findings published in -Optica- Quantum technologies are a seminal field of research, especially in relation to their application in communication and computing. In particular, the so-called single-photon emitters - materials that emit single light quanta in quick sequence - are an important building block for such applications.

Computer Science - Physics - 06.05.2022
In balance: Quantum computing needs the right combination of order and disorder
Study shows that disorder in quantum computer chips needs to be designed to perfection / Publication in 'Nature Communications' Research conducted within the Cluster of Excellence 'Matter and Light for Quantum Computing' (ML4Q) has analysed cutting-edge device structures of quantum computers to demonstrate that some of them are indeed operating dangerously close to a threshold of chaotic meltdown.

Physics - Microtechnics - 21.04.2022
Microdrones With Light-driven Nanomotors
Microdrones With Light-driven Nanomotors
04/21/2022 Propelling micrometre-sized drones using light only and exerting precise control: Physicists at the University of Würzburg have succeeded at this for the first time. Their microdrones are significantly smaller than red blood cells. A hand-held laser pointer produces no noticeable recoil forces when it is "fired" - even though it emits a directed stream of light particles.

Astronomy / Space Science - Physics - 14.04.2022
MAGIC telescopes observe stellar explosion
MAGIC telescopes observe stellar explosion
The MAGIC telescopes have observed the nova RS Ophiuchi shining brightly in gamma rays at extremely high energy. The Gamma rays emanate from protons that are accelerated to very high energies in the shock front following the explosion. This suggests that novae are also a source of the ubiquitous cosmic radiation in the universe which consists mainly of protons rich in energy, which race through space at almost the speed of light.

Physics - 13.04.2022
Rotating blue laser light reveals unimagined dynamics in living cells
Rotating blue laser light reveals unimagined dynamics in living cells
Using a novel laser-scanning microscope scientists observe processes in cells changing within milliseconds When cities transform into a colorful world of lights as darkness falls, it's often only possible to estimate their contours, which depending on the perspective can draw the attention to key details or trivia.

Physics - Chemistry - 30.03.2022
Less waste from lower enriched Uranium targets
Less waste from lower enriched Uranium targets
New separation process for key radiodiagnostic agent reduces radioactive waste Nuclear medicine uses technetium-99m among other things for tumor diagnostics. With over 30 million applications worldwide each year, it is the most widely used radioisotope. The precursor material, molybdenum-99, is mainly produced in research reactors.

Physics - 25.03.2022
Physicists create extremely compressible 'gas of light'
Physicists create extremely compressible ’gas of light’
Study by the University of Bonn could pave the way to new types of highly sensitive sensors Researchers at the University of Bonn have created a gas of light particles that can be extremely compressed. Their results confirm the predictions of central theories of quantum physics. The findings could also point the way to new types of sensors that can measure minute forces.

Chemistry - Physics - 21.03.2022
Chemists discover new reactivity of strained molecules
Chemists discover new reactivity of strained molecules
In synthetic organic chemistry, so-called cycloadditions are a particularly important class of reactions. With this type of reaction, ring-shaped molecules can be constructed simply and efficiently by joining ("adding") two compounds that each contain double bonds. A team led by Frank Glorius from the University of Münster has now succeeded in performing an unconventional cycloaddition in which a carbon-carbon double bond reacts with a carbon-carbon single bond.

Physics - Chemistry - 16.03.2022
Complex pathways influence time delay in ionization of molecules
Complex pathways influence time delay in ionization of molecules
Study shows how the mechanism of photoionization can be used to gain insights into complex molecular potentials How can researchers use the mechanism of photoionization to gain insight into complex molecular potential? This question has now been answered by a team led by Giuseppe Sansone from the Institute of Physics at the University of Freiburg.

Physics - 11.03.2022
Acoustic propulsion of nanomachines depends on their orientation
Acoustic propulsion of nanomachines depends on their orientation
For the first time, physicists simulate the propulsion of freely orientable nanoparticles by travelling ultrasound waves / Study published in -ACS Nano- Microscopically tiny nanomachines which move like submarines with their own propulsion - for example in the human body, where they transport active agents and release them at a target: What sounds like science fiction has, over the past 20 years, become an ever more rapidly growing field of research.

Physics - 08.03.2022
Advances in micro-computed tomography
Advances in micro-computed tomography
Researchers in biomedical physics and biology have significantly improved micro-computed tomography, more specifically imaging with phase contrast and high brilliance x-ray radiation. They have developed a new microstructured optical grating and combined it with new analytical algorithms. The new approach makes it possible to depict and analyze the microstructures of samples in greater detail, and to investigate a particularly broad spectrum of samples.

Physics - Electroengineering - 03.03.2022
Waves on circular paths
Waves on circular paths
Just as electrons flow through an electrical conductor, magnetic excitations can travel through certain materials. Such excitations, known in physics as "magnons" in analogy to the electron, could transport information much more easily than electrical conductors. An international research team has now made an important discovery on the road to such components, which could be highly energy-efficient and considerably smaller.

Astronomy / Space Science - Physics - 28.02.2022
Cosmic sonic boom
Cosmic sonic boom
An international research team is investigating the aftermath of a gigantic cosmic burst with the help of NASA's "Chandra" X-ray observatory. Theoretical physicists from the University of Jena are supporting the researchers by providing detailed predictions and simulations to enable interpretation of Chandra's X-ray data.

Physics - Materials Science - 24.02.2022
Revealing New States in 2D Materials
Revealing New States in 2D Materials
02/24/2022 Würzburg researchers have highlighted and quantified a three-fold coupling between exciton, photon, and phonon in a microcavity with embedded two-dimensional materials. Atomically thin two-dimensional (2D) materials can provide highly interesting excitonic properties, which render them an attractive platform to explore polaritonic physics.

Physics - Astronomy / Space Science - 15.02.2022
Neutrinos Are Lighter than 0.8 Electron Volts
New World Record: KATRIN Experiment Constrains the Mass of Neutrinos with Unprecedented Precision The international KArlsruhe TRItium Neutrino Experiment (KATRIN) located at Karlsruhe Institute of Technology (KIT) has now been the first to constrain the mass of neutrinos to less 1 electron volt (eV) and, hence, has broken an important "barrier" in neutrino physics.

Physics - Electroengineering - 11.02.2022
Kagome Metals Baffle Science
Kagome Metals Baffle Science
Toward a new kind of superconductivity: An international team of physicists finds joint appearance of intricate quantum phenomena. Toward a new kind of superconductivity: In the past four years scientists have discovered metals whose crystal structure mimics that of a traditional Japanese woven bamboo pattern: kagome metals.

Chemistry - Physics - 10.02.2022
How life came to Earth
How life came to Earth
Researchers from the Friedrich Schiller University Jena and the Max Planck Institute for Astronomy have discovered a new clue in the search for the origin of life by showing that peptides can form on dust under conditions such as those prevailing in outer space. These molecules, which are one of the basic building blocks of all life, may therefore not have originated on our planet at all, but possibly in cosmic molecular clouds.

Materials Science - Physics - 09.02.2022
New thermofluidic process for lab-on-a-chip applications
New thermofluidic process for lab-on-a-chip applications
Researchers at Leipzig University have succeeded in moving tiny amounts of liquid at will by remotely heating water over a metal film with a laser. The currents generated in this way can be used to manipulate and even capture tiny objects. This will unlock groundbreaking new solutions for nanotechnology, the manipulation of liquids in systems in tiny spaces, or in the field of diagnostics, by making it possible to detect the smallest concentrations of substances with new types of sensor systems.
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