Articles tagged with Experimental Physics
Physicists at the University of Sussex have developed a remote monitoring system for quantum devices, allowing for real-time control and issue resolution. This system enables researchers to monitor environmental factors such as temperature, pressure, and laser beams in ultracold quantum laboratories.
Researchers used a COLTRIMS reaction microscope to determine the duration of an electron's release after photon absorption. The study found that the emission time depends on the direction and velocity of the electron, revealing a complex interplay between quantum physics and molecular dynamics.
Physicists have measured the oscillation frequency of Bs0 mesons with unprecedented accuracy, revealing that they oscillate between matter and antimatter three trillion times per second. This measurement agrees with quantum mechanics predictions and narrows search areas for particles undescribed by the Standard Model.
A research team from the University of Jena has made an important breakthrough in generating high-energy proton radiation using laser-plasma interaction. By precisely adjusting parameters such as foil thickness, laser focusing, and pulse duration, they have achieved a maximum energy yield that could enable the development of smaller an...
A research team has successfully visualized the 3D structure of human chromosomes using coherent X-rays, revealing a fractal structure and providing insights into genetic information transmission. The study's findings have significant implications for understanding genetics and uncovering the structures of other materials like viruses.
Researchers discovered a new method to control spin-lattice interaction with ultrashort terahertz pulses, potentially revolutionizing ultrafast data processing and storage. This breakthrough could address the growing energy demands of data storage centers.
Researchers investigate Mandelstam-Tamm limit, finding minimum time for quantum information change depends on energy uncertainty, and second speed limit emerges when energy uncertainty exceeds average energy of atom. This discovery proves fundamental limits to quantum computers' processing power.
Researchers have discovered that negative capacitance in topological transistors can switch at lower voltage, potentially reducing energy losses. This new design could help alleviate the unsustainable energy load of computing, which consumes about 8% of global electricity supply.
Researchers have demonstrated a novel topology arising from losses in hybrid light-matter particles, introducing a new avenue to induce topological effects. The study found that the mere presence of loss in an exciton-polariton system causes it to exhibit nontrivial topology.
Physicists at Technical University of Munich discover potential existence of tetra-neutron, a bound state of four neutrons, which could significantly alter our understanding of nuclear forces. The experiment's results suggest a half-life of 450 seconds and stability comparable to the neutron.
Latifa Elouadrhiri received the 2021 Jesse W. Beams Research Award for her fundamental contributions to nuclear science. Her team made a groundbreaking measurement of proton pressure distribution, opening up new directions in particle physics research.
The University of California, Riverside, has been awarded a $980,000 grant from the Department of Energy to develop an AI-driven detector for the future Electron-Ion Collider. The team will use machine learning techniques to optimize detector design and achieve 'co-design,' a new concept in nuclear physics.
Researchers at Harvard have successfully observed quantum spin liquids, a previously unseen state of matter that has been elusive for nearly 50 years. By manipulating ultracold atoms in a programmable quantum simulator, the team was able to create and study this exotic state, which holds promise for advancing quantum technologies.
Scientists at Chalmers University of Technology discovered a way to create a stable resonator using two parallel gold flakes in a salty aqueous solution. The structure can be manipulated and used as a chamber for investigating materials and their behavior, with potential applications in physics, biosensors, and nanorobotics.
Scientists from Stanford University and Google Quantum AI have successfully created a time crystal, a new phase of matter that repeats in time without energy input. The achievement opens up opportunities to explore new regimes in condensed matter physics, providing insight into non-equilibrium quantum systems.
A team of nuclear physicists used electron studies to validate neutrino-nucleus interaction models, highlighting the need for updates to achieve accurate results in upcoming neutrino experiments. The study utilized an electron-scattering version of GENIE, a theoretical simulation used in neutrino research.
Researchers have successfully created an experimental model of a skyrmion particle in a beam of light, providing a real system to demonstrate the behavior of this elusive type of fundamental particle. The study reveals the intricate structure and topological properties of skyrmions, which can be distorted but not broken.
Researchers at TRIUMF's IRIS group have discovered an unexpected deformation in the nucleus of helium-8, which challenges current understanding of nuclear shell dynamics. The study provides a unique energy fingerprint of the reaction products, revealing a significant deformation in the arrangement of outer neutrons.
Researchers at Stanford University have developed a new device that brings sound to quantum science experiments, opening up new possibilities for studying solids and phases of matter. The device uses a precise cavity to hold an optical lattice of atoms, which vibrates at around 1 kHz, producing phonons - the building blocks of sound.
An international research team has measured neutron form factors with previously unattained precision, filling a blank space on the map. The new data provides a more comprehensive picture of the neutron's size and lifetime, and reveals oscillating patterns in its form factor.
Researchers at the University of Groningen have successfully trapped molecules of strontium fluoride, setting a new record for molecular trapping. This achievement is significant because it allows scientists to investigate the fundamental laws of the universe, including the asymmetry between matter and anti-matter.
The BICEP3 experiment has ruled out several popular inflation models, including some motivated by string theory. The findings suggest that the correct model will be slightly more complicated than those ruled out, but still offer a wide range of viable alternatives.
GSI/FAIR researchers aim to study properties of hypernuclei, which could shed light on neutron star phenomena. The WASA detector will help determine binding energy and lifetimes with higher detection efficiency.
Researchers at Skoltech extend the adiabatic theorem to finite temperatures, ensuring more stable quantum dynamics. The findings have significant implications for next-generation quantum devices and computing.
Brookhaven Lab particle physicist Kétévi Assamagan has been elected as an APS Fellow for his significant contributions to the Standard Model Higgs boson research. He is also recognized for leading physics outreach programs, including founding the African School of Fundamental Physics and Applications.
New research reveals that a layer of 'hot', electrically conductive ice could be responsible for generating the magnetic fields of ice giant planets. The study found two forms of superionic ice, one of which may exist in the interiors of Uranus and Neptune.
Researchers at Indiana University have made the world's most precise measurement of a neutron's lifetime, improving upon previous measurements by more than two-fold. The study provides new insights into the nature of the universe, including the possibility of dark matter and the formation of atomic nuclei.
Researchers have classified magnetic materials using a unified description, solving a longstanding problem. The new system provides a complete mathematical characterization of magnetic structures and has implications for quantum applications.
Researchers discovered ultrafast coupled atomic vibrations in few-layer hexagonal boron nitride, resulting in a frequency down-shift of the optical phonons. The study also reveals a nonlinear optical effect that can be induced by moderate power light, holding potential for optoelectronic applications.
An international team of researchers has made the world's most precise measurement of the neutron's lifetime, which may help answer questions about the early universe. The results represent a more than two-fold improvement over previous measurements, with an uncertainty of less than one-tenth of a percent.
The latest results from the RHIC Spin Program provide new insights into the contribution of quarks and gluons to a proton's spin. Researchers at Brookhaven Lab have made significant progress in studying the three-dimensional internal structure of protons using collisions of spin-polarized protons at the Relativistic Heavy Ion Collider ...
An international team of scientists, led by Professor Owen Long, explored supersymmetry as an extension of the Standard Model. They conducted experiments at the Large Hadron Collider and found no signs of supersymmetric particles, but their null result is still a significant scientific progress.
Researchers have found a way to stabilize the novel quantum effect in graphene at room temperature, which could lead to breakthroughs in data storage and computer components. The discovery was made using standard microfabrication techniques and showed that the material can generate its own magnetic field.
Scientists from Skoltech and the University of Southampton created an all-optical lattice that houses polaritons, quasiparticles with half-light and half-matter properties. They demonstrated breakthrough results for condensed matter physics and flatband engineering.
The 2021 Fall Meeting of the APS Division of Nuclear Physics presents cutting-edge research on nuclear astrophysics, quantum technology, and rare isotopes. Researchers will discuss breakthroughs such as the most precise measurement of neutron lifetime and novel experiments measuring neutron skin in calcium.
Researchers investigate light smashups to create new physics beyond the Standard Model, building on previous discoveries that matter can be generated from light. The study reveals implications for understanding primordial plasma and the strong force.
A new experimental method tracks the motion of fibers instead of particles to reveal previously hidden information about turbulent flows. The researchers developed an innovative solution using rigid fibers, which allowed them to measure the speed and direction of flow at two points a fixed distance apart.
Researchers created indenene, a topological quantum material with a triangular honeycomb structure, which exhibits robust properties and doesn't require ultra-low temperatures to manifest its characteristics. This design improvement enables the growth of perfect films suitable for device nanofabrication.
A City University of Hong Kong physicist has observed the first unpaired singular Weyl magnetic monopole in a specific kind of single crystalline solid, defying the Nielsen-Ninomiya no-go theorem. The discovery opens up new avenues for understanding bulk topological properties and potential applications in spintronics.
Physicists have successfully tested the theory of generalized hydrodynamics in one-dimensional gases, demonstrating its accuracy in simulating out-of-equilibrium quantum systems. This breakthrough could greatly simplify the study of such systems and eventually inform the development of quantum-based technologies.
Researchers from Tokyo University of Science developed a self-powered diaper sensor that monitors urine sugar levels, providing an alternative biomarker for blood sugar monitoring. The sensor uses a biofuel cell powered by glucose in the urine, detecting sugar levels within 1 second and simplifying caretaking tasks.
Researchers create transistors with an ultra-thin metal gate grown as part of the semiconductor crystal, eliminating oxidation scattering. This design improves device performance in high-frequency applications, quantum computing, and qubit applications.
Researchers at the University of Innsbruck have successfully generated a two-dimensional supersolid quantum gas, a phenomenon previously observed only in one dimension. This breakthrough enables the study of vortices forming in the hole between droplets, furthering our understanding of superfluidity and its properties.
Researchers at DESY create a table-top electron camera that captures the inner, ultrafast dynamics of matter by shooting short bunches of electrons at a sample. The system uses Terahertz radiation for pulse compression and is validated with the investigation of a silicon sample.
Physicists have established a fundamental limitation of light confinement in nano-scale systems, with a critical dimension threshold of around 250nm. This discovery has implications for various fields such as material science and quantum technologies.
Researchers at NIST have created a quantum crystal sensor that can measure electric fields with unprecedented sensitivity, potentially revolutionizing dark matter detection. By entangling the mechanical motion and electronic properties of tiny ions, the sensor can detect subtle vibrations caused by dark matter particles.
Researchers explore joining topological insulators with magnetic materials to achieve quantum anomalous Hall effect, promising building blocks for low-power electronics. The 'cocktail' approach allows tuning of both magnetism and topology in individual materials, enabling operation closer to room temperature.
Exciton-polaritons exhibit non-linear effects, including Bose-Einstein condensation and polariton lasing without occupation inversion. The study reveals energy-degenerate parametric scattering of polaritons and opens up new avenues for research on multi-level polariton systems.
Researchers at the University of Innsbruck develop new method to assess influence of dielectric materials on charged particles in ion traps, enabling more accurate design and minimization of noise in quantum computers. The breakthrough improves understanding of sources of error in ion trap quantum computing.
Researchers investigate the limits of quantum theory in describing an observer's experience, leading to a 'no-go theorem' for the persistent reality of Wigner's friend perception. The study challenges traditional assumptions about the nature of reality and raises questions about the reliability of an observer's predictions.
Researchers have successfully created a three-layered graphene structure that exhibits more robust superconductivity at higher temperatures than double-stacked graphene. The system allows for tuning of superconductivity by adjusting an externally applied electric field.
Researchers discovered that complex oscillations in quantum systems decay over time into a simple Gaussian distribution, driven by interactions. The Vienna group created a synthetic Bose-Einstein condensate to study phonon dynamics, which eventually lost complexity and followed the Gaussian shape.
The MOLLER experiment aims to precisely measure the electron's weak charge, providing a stringent test of the Standard Model. With a projected five times better precision than previous experiments, this measurement could uncover new physics at high masses.
Researchers at Johannes Gutenberg University Mainz engineered a system of magnetic whirls to form a regularly ordered state, akin to crystalization in two dimensions. This breakthrough demonstrates the emergence of a hexatic phase, exhibiting properties similar to hard discs.
The NSF has awarded a $20 million grant to create an AI Institute for Artificial Intelligence and Fundamental Interactions, a cross-discipline collaboration between 20 physicists and seven AI experts from top universities. The institute will explore the use of AI in fundamental physics and apply physics principles to improve AI methods.
Researchers from University of Cincinnati and Fermi National Accelerator Laboratory failed to detect sterile neutrinos in twin experiments, increasing doubts about their existence. The study's findings suggest that sterile neutrinos might not be responsible for previously observed anomalies.
Researchers at University of Göttingen use femtochemistry to film and control chemical reactions on solid surfaces. They successfully transfer principle from molecules to a solid, controlling its crystal structure with high efficiency.
Physicists at Heidelberg University have developed a new method to identify effective theories in many-body systems using quantum simulators. The approach allows for the efficient description of complex systems and has been demonstrated experimentally with ultracold rubidium atoms.
Researchers at MSU are working on a $3.7M project to create more accurate models of scientific phenomena using Bayesian statistics and machine learning. The team aims to improve the characterization and reduction of uncertainties in nuclear processes, making it easier for scientists to design experiments and allocate resources.
Researchers from HSE University developed an algorithm called Allen, which processes data from the LHCb detector using a farm of GPUs. This approach increases processing speeds up to 40 Tbit/s and reduces costs compared to traditional CPU-based systems.