Articles tagged with Electrons
Researchers investigate how wall materials and structures impact secondary electron emission, which can affect plasma confinement and efficiency. They find that lithium oxide linings release more secondary electrons than other materials, highlighting the need to account for reactivity in fusion models.
Researchers at PPPL have discovered a source of fast magnetic reconnection in plasma, which could lead to more accurate predictions of damaging space weather and improved fusion experiments. The finding shows how electron pressure accelerates the process, balancing electric current and preventing halting the reconnection process.
The CEBAF accelerator has successfully delivered upgrade-energy electron beams into two of its experimental areas, Halls B and C. The upgrades mark progress toward the final DOE approval step for project completion.
Researchers use picosecond time resolution to investigate ultrafast radiation chemistry occurring immediately after protons interact with water. The new approach allows for high detail capture of rapid chemical evolution, revealing a delay in the formation of absorption bands after proton exposure.
Researchers at the University of Kansas have observed counterintuitive motion of electrons during experiments, moving from top to bottom layer without being spotted in the middle. This quantum transport efficiency is promising for new materials in solar cells and electronics.
Researchers at FAU successfully generate electron packets with lengths of 1.3 femtoseconds, enabling imaging of atomic movements on ultra-short time scales. The method uses laser-controlled acceleration, deceleration, and deflection of electrons, paving the way for ultra-high resolution electron microscopes.
New observations from NASA's Van Allen Probes mission show that relativistic electrons, the fastest and most energetic particles in the inner radiation belt, are not present as much of the time as previously assumed. This discovery has significant implications for spacecraft design and opens up new avenues for scientific study.
The team successfully controlled the peaks of laser pulses and twisted light, moving electrons faster and more efficiently than electrical currents. This achievement brings us closer to developing fast 'lightwave' computers that can process information up to 100,000 times faster than current electronics.
Researchers at MIT have discovered a new method to control electrons in two-dimensional materials, potentially paving the way for valleytronic devices with enhanced control over electronic valleys. This breakthrough could lead to faster, more efficient data storage and computer logic systems.
A seven-year experiment has confirmed that two photons are indeed exchanged during electron-proton interactions, contradicting theoretical predictions. The OLYMPUS study, led by MIT researchers, used polarized electron beams to measure the intensity of scattered electrons at different angles.
Scientists have made groundbreaking discoveries about the movement of supercool electrons on a liquid helium surface, shedding light on their behavior and potential applications in quantum computing. The research aims to create a scalable system with mobile qubits, paving the way for significant advancements in the field.
Recent studies in density functional theory (DFT) have raised concerns about the accuracy of approximations used in computational chemistry. Researchers found that even with improved energy calculations, the quality of electron density simulations worsened over time. This contradiction highlights a fundamental flaw in DFT's approach.
Researchers attribute graphene's high conductivity to accelerating effect of electrons interacting with photons in a weak magnetic field. The study uses pseudo-quantum electrodynamics to model electron-photon interactions across space-time dimensions.
Scientists at the University of Bonn have successfully observed an important cell protein in action using a novel method that measures structural changes within complex molecules. This breakthrough allows researchers to elucidate cellular processes in their natural environment.
Physicists at the University of Würzburg have discovered a new electronic state in topological crystalline insulators, creating conductive channels for electrical currents. The channels are narrow and robust, making the materials suitable for ultra-fast and energy-efficient computers.
Researchers at FAU successfully control electron pulses using laser delays, exhibiting quantum path interference and opening doors for time-resolved electron microscopy. The discovery could lead to complex electron pulses in the future, revolutionizing surface coherence research.
Four Kiel University instruments will measure electrons, protons and ions in the Solar Orbiter space probe. The instruments passed tests with flying colours, providing valuable insights into sun particle radiation and its effect on Earth.
Researchers at MIT and Germany describe a new technique for generating ultrashort electron bursts, potentially leading to a shoebox-sized device that consumes less power than car-size laboratory devices. This could enable real-time imaging of cellular machinery in action with attosecond X-ray pulses.
Researchers at DESY and MIT create a miniaturized electron gun that accelerates electrons to high speeds using terahertz radiation. The device has the potential to revolutionize ultrafast electron diffraction experiments and enable new applications in physics and materials science.
Researchers have created a qubit in zinc selenide, enabling the transfer of quantum information at the speed of light. The new technique shows that it is possible to create a qubit faster than with all existing methods.
Physicists adapt BCS theory to externally drive phonon interaction, elevating critical temperature and creating higher-temperature superconductors. Theoretical approach reveals controlled elevation of critical temperature through time-averaging procedure.
Researchers at TU Wien and Germany have developed a method to study the time structure of quantum jumps, which are extremely fast state changes in atoms. The experiment showed that the duration of two different ionization processes can be distinguished, revealing new insights into the physics of ultrashort time scales.
Physicist Chris Greene and his team observed a butterfly Rydberg molecule, a weak pairing of two highly excitable atoms that was predicted to exist more than a decade ago. The discovery validates the theoretical approach and opens up new possibilities for molecular scale electronics or machines.
Researchers at General Atomics have developed a gamma ray camera to image energetic electrons in ultra-hot fusion plasma, providing unprecedented insights into their behavior. The device reveals that radiation forces can sap high-energy electrons, while collisions with other electrons are more effective at lower energies.
Researchers at Goethe University Frankfurt have developed a new non-metal catalyst that can split the hydrogen molecule under mild conditions. The process requires only an electron source and has potential applications in energy production, chemical synthesis, and the semiconductor industry.
Electron orbits are directly visualized in a high-magnetic field, showing a quantum fluid state with unique elliptical paths. The discovery could inspire new electronics technologies, particularly in valleytronics and two-dimensional materials.
Scientists discovered that defect states can be used to detect occupation of trap sites, enabling new studies on developing novel technologies. They found that coherent microwave fields can dynamically mediate the occupation of defects states, consistent with two-level systems.
Researchers have made a breakthrough in transmitting spin information through superconducting materials, solving a major challenge for quantum computing. The discovery could lead to the development of more powerful computers capable of processing multiple spin states simultaneously.
The MINOS and Daya Bay experiments have published a paper that sheds new light on sterile neutrinos. The joint analysis excludes most possible sterile neutrino oscillation scenarios that could explain the LSND result, significantly shrinking the hiding space for a light sterile neutrino.
Researchers from Bar-Ilan University and Harvard University developed a mathematical tool to visualize electron shapes in superconducting materials. This innovation helps gain a better understanding of complex material properties, paving the way for future discoveries.
Researchers at SLAC used the ultrafast electron diffraction method to capture atomic nuclei in molecules vibrating within millionths of a billionth of a second. This technique provides new opportunities for precise studies of dynamic processes in biology, chemistry, and materials science.
Researchers at Trinity College Dublin and Fudan University in Shanghai have discovered that electrons with no mass can acquire a mass in the presence of an extremely high magnetic field. This finding represents a significant breakthrough in fundamental physics, opening up new possibilities for research in high-energy physics.
Researchers from TU Wien, Aachen, and Manchester successfully created artificial atoms in graphene by confining electrons to small spaces. This innovation enables the preservation of arbitrary superpositions for a long time, ideal properties for quantum computers.
Researchers at Imperial College London have discovered a way to bind light to a single electron, merging their properties. This breakthrough could lead to the development of robust photonic circuits that are less vulnerable to disruption.
Scientists have successfully realised qubits in a novel form, leveraging electron holes to overcome interference issues. This breakthrough offers potential improvements in programming and reading quantum bits for future quantum computers.
Researchers create ultrafast electron imaging instrument to map electromagnetic fields oscillating at billions of cycles per second. The new technology enables precise detection and measurement of tiny, rapidly oscillating electromagnetic fields.
A research team has demonstrated that energy-filtered transmission electron microscopy (EFTEM) can be used to image individual electron orbits within atoms. This technique allows for penetration down to the subatomic level, opening up new possibilities for the study of atomic structures.
Researchers have successfully coupled the nuclear spins of distant atoms using just one electron, leveraging quantum theory to overcome limitations in spin qubit stability. The experiment, led by Prof. Richard Warburton at the University of Basel, demonstrates an unprecedented distance of up to five nanometers.
A new description of electron scattering in surface layers enables faster materials analysis and better understanding of sample properties. The theoretical tools used in spectroscopies can exhibit great 'malice', but a new analytical method simplifies calculations of the Chandrasekhar function, reducing errors.
Researchers found charge density waves extending deeply into superconducting regions, allowing for new ways to manipulate superconductivity. The discovery paves the way to controlling the superconducting state itself.
The discovery could lead to more efficient conversion of sunlight into electricity and fuel by minimizing the distance electrons travel through chemical bonds. This finding has implications for both solar fuel devices and biological systems, where understanding electron transfer is crucial.
Researchers have developed a framework to manipulate DNA's conductivity by varying its sequence, length, and stacking configuration. This enables the creation of stable and efficient DNA nanowires with potential applications in gene damage identification and novel electronics.
A team of researchers has engineered a DNA nanowire with alternating guanine bases to facilitate long-range wave-like electronic motions. This breakthrough may lead to the development of stable, efficient, and tunable DNA nanoscale devices.
Researchers have experimentally confirmed a mathematical model describing the distribution of delocalized electrons in molecules and crystals. The study uses X-ray diffraction data to demonstrate the approach's ability to detect electron delocalization, paving the way for new understanding of chemical bonding.
BARREL's observations showed the open-closed boundary moving within minutes, providing a map of its location. Scientists can now refine simulations of how magnetic fields change around Earth due to this precise mapping.
Researchers at Harvard John A. Paulson School of Engineering and Applied Sciences have discovered a new phase transition in an oxide material, enhancing the performance of solid oxide fuel cells. This breakthrough could lead to more robust and efficient fuel cells with reduced emissions.
Scientists capture direct measurements of electron movement in magnetic reconnection, shedding light on geomagnetic storms and auroras. The MMS Mission provides unprecedented insights into the explosive phenomenon, which plays a key role in disrupting communications systems and satellites.
NASA's Magnetospheric Multiscale mission has observed the first direct measurements of magnetic reconnection, a key driver of space radiation. The research reveals that electrons dominate this process, shedding light on its mysteries.
Researchers at University of Chicago have developed a new device that captures trapped electrons and manipulates them using superconducting quantum circuits. The team successfully holds electrons in place for up to 12 hours, leveraging the unique properties of liquid helium to isolate individual electrons.
A novel system uses thin slivers of diamond to measure electron beam polarization with unprecedented accuracy. The diamond-based detector provides direct and accurate measurements, overcoming previous uncertainties caused by laser beam distortions.
Researchers at PPPL discovered that the bootstrap current is mostly carried by magnetically trapped electrons, contradicting previous understanding. This finding provides a new explanation for the large size of the bootstrap current at the tokamak edge.
Scientists at LMU and MPQ create a technique for controlling ultrafast electron pulses, enabling the visualization of atoms and electrons in motion. This breakthrough could lead to new photonic and electronic materials and devices.
Physicists at Ames Laboratory have discovered a topological metal, PtSn4, with a high density of conduction electrons and large number of closely positioned Dirac points. This discovery may lead to energy-efficient computers with increased processor speeds and data storage.
Researchers develop a new approach to coupling Rydberg atoms to surfaces, reducing electric fields and enabling hybrid quantum systems. The findings show promise for the second quantum revolution in engineering quantum matter with arbitrary precision.
Researchers from the Academy of Finland discovered that photoinhibition, a previously believed detrimental reaction, actually protects photosynthetic apparatus by altering function to dissipate excess energy. This finding challenges previous understanding of photosynthesis' different photosystems and their roles.
Researchers observed electrons sinking into crystal depths via special channels, unlike standard materials. The study's results suggest a better understanding of topological materials could lead to faster electronic devices.
Scientists at the University of California, Riverside have created a way to observe electrons cooling off in just 30 quadrillionths of a second. This breakthrough could lead to more efficient devices for visual displays, solar cells, and optical communications.
The study finds that the shape of the radiation belts varies depending on electron energy levels, resulting in different structures during geomagnetic storms. The new data from the Van Allen Probes satellites provide a more detailed understanding of the dynamics, enabling scientists to create a more precise model.
Scientists have successfully implemented an innovative scheme to increase proton collision rates at the Relativistic Heavy Ion Collider (RHIC), resulting in doubled peak and average luminosity measures. This enables researchers to collect more data to answer important questions about proton spin and nuclear physics.
Researchers at Boston College have developed a new type of cross coupling chemical reaction using a third reactant, expanding on the pioneering Suzuki-Miyaura coupling method. The resulting 'conjunctive' reaction takes place efficiently and offers high selectivity.