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Physics - Materials Science - 03.12.2024
A keener eye for the invisible
A keener eye for the invisible
From smart textiles to self-driving cars: researchers are developing new types of detectors for infrared radiation that are more sustainable, flexible and cost-effective than conventional technologies. The key to success is not (only) the composition of the material, but also its size. The ubiquity of infrared detectors What do motion detectors, self-driving cars, chemical analyzers and satellites have in common' They all contain detectors for infrared (IR) light.

Physics - Chemistry - 02.12.2024
Controlling matter at the atomic level: University of Bath breakthrough
Controlling matter at the atomic level: University of Bath breakthrough
Physicists are getting closer to controlling single-molecule chemical reactions - could this shape the future of pharmaceutical research? Controlling matter at the atomic level has taken a major step forward, thanks to groundbreaking nanotechnology research by an international team of scientists led by physicists at the University of Bath.

Physics - Chemistry - 02.12.2024
Quantum Sensing Using Ultrafast Laser Pulses and a New Class of Molecular Probes
In the effort to develop new quantum technologies of the future, scientists are pursuing several different approaches. One avenue seeks to use molecules as the fundamental building blocks of quantum technologies. Now scientists at Caltech have figured out a new way to use ultrafast laser pulses to realize an important quantum mechanical property known as superposition, turning a relatively simple molecule into a quantum sensor-a tool that can measure chemical phenomena in its surroundings through inherently quantum means.

Chemistry - Physics - 29.11.2024
Chemistry textbooks need rewriting after new research
Chemistry textbooks need rewriting after new research
Scientists are calling for changes to chemistry textbooks after discovering a fundamental aspect of structural organic chemistry has been incorrectly described for almost 100 years. The team from Cardiff University's School of Chemistry, dispute the long-held belief that alkyl groups - a chemical group consisting of carbon and hydrogen atoms arranged in a chain - donate electrons to other parts of a molecule.

Physics - Career - 28.11.2024
Playing with light and symmetry
Playing with light and symmetry
In a recent study at the University of Twente, researchers discovered a way to scatter light in a special, symmetrical way using nanotechnology. This has potential for future technologies such as anti-counterfeiting. For the study, the researchers printed cubes about five times smaller than the diameter of a human hair, which consisted of rods in random directions.

Physics - Materials Science - 28.11.2024
’Velcro’ DNA origami helps build nanorobotic Meccano
The nanorobots developed by Dr Minh Luu and Dr Shelley Wickham could be used to deploy targeted cancer drugs, make futuristic materials that respond to their environments and find uses in creating energy-efficient signal processing. Nanoscale 'dinosaur' Object imaged using the cryo-electron microscope at the University of Sydney Microscopy and Microanalysis facility is just 250 nanometres wide.

Physics - 27.11.2024
Com­plex atoms in opti­cal tweez­ers
Com­plex atoms in opti­cal tweez­ers
A team led by Francesca Ferlaino has set a new milestone in atomic physics by trapping individual erbium atoms in optical tweezers for the first time. Taking advantage of erbium's complex electronic structure, which opens up new degrees of freedom and possibilities, this advancement opens the door to a range of innovative experiments in quantum science.

Astronomy / Space - Physics - 25.11.2024
Astronomers measure electrons from space at record energies
Astronomers measure electrons from space at record energies
A pulsar within a few thousand light-years of Earth could have accelerated electrons and positrons to the extreme energies now measured by the H.E.S.S.-Observatory Five telescopes of the H.E.S.S.-collaboration in Namibia are used to study cosmic radiation, especially gamma radiation. In data from ten years of observations, the researchers have now been able to detect cosmic electrons and positrons with an unprecedented energy of more than ten tera-electronvolts (1 TeV corresponds to 10^12 electronvolts).

Physics - 22.11.2024
Lenses that could block epileptic-seizure causing wavelengths developed
People with photosensitive epilepsy could benefit from a prototype pair of glasses with lenses that block out wavelengths that are known to cause seizures in some people. In a study published in Cell Reports Physical Science , researchers from the University of Glasgow and University of Birmingham have developed a prototype of a liquid crystal lens that they believe could help photosensitive epilepsy sufferers.

Astronomy / Space - Physics - 20.11.2024
New DESI Results Weigh In On Gravity
Key Takeaways A complex analysis of DESI's first year of data provides one of the most stringent tests yet of general relativity and how gravity behaves at cosmic scales. Looking at galaxies and how they cluster across time reveals the growth of cosmic structure, which lets DESI test theories of modified gravity - an alternative explanation for our universe's accelerating expansion.

Physics - 19.11.2024
A peek inside the box that could help solve a quantum mystery
An elusive particle that first formed in the hot, dense early universe has puzzled physicists for decades. Following its discovery in 2003, scientists began observing a slew of other strange objects tied to the millionths of a second after the Big Bang. Appearing as 'bumps' in the data from high-energy experiments, these signals came to be known as short-lived 'XYZ states.' They defy the standard picture of particle behaviour and are a problem in contemporary physics, sparking several attempts to understand their mysterious nature.

Physics - Astronomy / Space - 18.11.2024
First Observation of Top Quarks in Heavy-Ion collisions
First Observation of Top Quarks in Heavy-Ion collisions
The ATLAS collaboration at the Large Hadron Collider (LHC) reported the first observation of top quarks in collisions between lead ions in a talk held at CERN last week. Members of the research group of Matthias Schott from the Physikalisches Institut at the University of Bonn have been contributing to this new study.

Astronomy / Space - Physics - 18.11.2024
H.E.S.S. collaboration detects the most energetic cosmic-ray electrons and positrons ever observed
H.E.S.S. collaboration detects the most energetic cosmic-ray electrons and positrons ever observed
Scientists from the CNRS, a consortium of German universities, and the Max-Planck-Institut für Kernphysik working at the H.E.S.S. observatory have recently identified electrons and positrons with the highest energies ever recorded on Earth. They provide evidence of cosmic processes emitting colossal amounts of energy, the origins of which are as yet unknown.

Physics - 18.11.2024
How can electrons can split into fractions of themselves?
Physicists surprised to discover electrons in pentalayer graphene can exhibit fractional charge. New study suggests how this could work. MIT physicists have taken a key step toward solving the puzzle of what leads electrons to split into fractions of themselves. Their solution sheds light on the conditions that give rise to exotic electronic states in graphene and other two-dimensional systems.

Physics - 18.11.2024
MIT physicists predict exotic form of matter with potential for quantum computing
New work suggests the ability to create fractionalized electrons known as non-Abelian anyons without a magnetic field, opening new possibilities for basic research and future applications. MIT physicists have shown that it should be possible to create an exotic form of matter that could be manipulated to form the qubit (quantum bit) building blocks of future quantum computers that are even more powerful than the quantum computers in development today.

Physics - Mathematics - 15.11.2024
A new puzzle piece for string theory research
A new puzzle piece for string theory research
Scientist from the Cluster of Excellence Mathematics Münster proves conjecture from physics String theory aims to explain all fundamental forces and particles in the universe - essentially, how the world operates on the smallest scales. Though it has not yet been experimentally verified, work in string theory has already led to significant advancements in mathematics and theoretical physics.

Astronomy / Space - Physics - 14.11.2024
Decades-long Uranus mystery solved
Decades-long Uranus mystery solved
Uranus's upper atmosphere has been cooling for decades - and now scientists have shown why. Observations from Earth have shown Uranus' upper atmosphere has been cooling for decades, with no clear explanation. Now, a team led by Imperial College London scientists has determined that unpredictable long-term changes in the solar wind - the stream of particles and energy coming from the Sun - are behind the drop.

Astronomy / Space - Physics - 13.11.2024
Mysterious 'Red Monster' galaxies in the early Universe
Mysterious ’Red Monster’ galaxies in the early Universe
An international team that includes the University of Bath has discovered three ultra-massive galaxies in the early Universe forming at unexpected speeds. An international team that was led by the University of Geneva (UNIGE) and includes Professor Stijn Wuyts from the University of Bath has identified three ultra-massive galaxies - each nearly as massive as the Milky Way - that had already assembled within the first billion years after the Big Bang.

Astronomy / Space - Physics - 13.11.2024
Bang! Meet the big 'Red Monsters' of the early universe
Bang! Meet the big ’Red Monsters’ of the early universe
An international research team, including Yale's Pieter van Dokkum, has discovered a trio of supermassive "Red Monster" galaxies in the early universe. Astronomers have spotted for the first time a trio of supermassive galaxies that were already fully formed in the first billion years of the universe's existence.

Physics - Innovation - 12.11.2024
New milestone in quantum research
New milestone in quantum research
Google Quantum AI and quantum physicists at Freie Universität Berlin publish groundbreaking results on Hamiltonian operators A research team from Freie Universität Berlin and Google Quantum AI has developed an innovative method for the precise determination of Hamiltonian operators. These are essential for understanding and simulating physical systems and play a key role in quantum technology.