Articles tagged with Experimentation
Researchers from Tomsk Polytechnic University and Spanish universities have developed a simple method to boost the responsivity of terahertz radiation detectors by 3.5 times using a small Teflon cube. This enhancement enables more precise measurements without changing the detector's design.
Researchers demonstrate Slater mechanism using pyrochlore oxide, a compound with minimal other metal-insulator transition mechanisms. The study provides new insights into fundamental questions about material behavior and has potential applications in spintronics.
The NUCLEUS-2021 conference will cover various topics in nuclear physics, including atomic nuclei, nuclear reactions, modern methods and technologies, relativistic nuclear physics, and more. The results of the conference will be published in two Springer journals.
A randomized survey experiment found heightened awareness of immigration detention fosters beliefs that the US immigration system lacks procedural and outcome fairness. Individuals' intentions to migrate were not influenced by heightened awareness of immigration detention or nonjudicial removals.
A recent study by Kazan Federal University explores the deformation of nitinol, a material with unique physico-mechanical properties. The research reveals that amorphous porous nitinol can sustain major mechanical loads significantly higher than crystalline nitinol.
The China Dark matter Experiment (CDEX) has presented new limits for the couplings of weakly interacting massive particles (WIMPs) in the non-relativistic effective field theory approach, improving over current bounds in the low mass region. CDEX's analysis also extended the limit on WIMP-pion coupling to the mχ< 6 GeV/c2 region.
Researchers have advanced understanding of light-matter interactions in chiral materials with a magnetic field, confirming the magneto-chiral dichroism theory. The study provides detailed measurements and quantum-chemical calculations for two model systems, opening the door to future applications.
The Muon g-2 Collaboration has published the first result of its measurement, revealing a discrepancy of 4.2 standard deviations between experiment and theory. The result strengthens evidence for the existence of new physics, potentially indicating previously unknown particles or forces.
Researchers estimated muon's magnetic field strength using a fully verified theory independent of experimental measurements. The result aligns with the standard model of particle physics, suggesting no need for new physics to explain the phenomenon.
Researchers at Skoltech have successfully synthesized Yttrium Hydride (YH6), a high-temperature superconductor that ranks among the top three known to date. The material exhibits superconductivity at temperatures of up to 243 K, with critical magnetic field discrepancies yet to be fully explained.
A study by researchers at the University of Campinas investigated optomechanical coupling, creating a theoretical model that was validated by simulations and comparisons with experimental results. The researchers found that both dispersive and dissipative interactions occur in microcavities, which can contribute to advances in fields s...
Researchers propose a new theory that predicts the existence of a new force between ordinary and dark matter, making dark matter accessible to forthcoming experiments. The 5-dimensional field equations also predict the existence of a heavy particle with similar properties as the Higgs boson but a much heavier mass.
A new study by the University of Hong Kong has experimentally proven the existence of Klein tunneling, where relativistic particles can pass through barriers with 100% transmission. This breakthrough has significant implications for fundamental physics and potential applications in sound manipulation and acoustic signal processing.
Balachandran's data-driven approach predicts which alloys will perform well in extreme environments, narrowing the search for high-performance materials. His work combines artificial intelligence with quantum mechanics to make the search more productive and cost-effective.
Researchers have precisely measured the weak interaction between protons and neutrons, yielding the smallest uncertainty in comparable measurements. The experiment uses a novel apparatus to detect subatomic products and overcome background noise, revealing key findings about the Standard Model of Particle Physics.
A newly published paper introduces a formal theoretical framework from first principles, enabling researchers to predict the fascinating properties of coupled photonic systems before numerically simulating them. The theory allows for the design and prediction of line-shapes with desired near-field and far-field properties.
A comprehensive analysis of 59 real-time randomized experiments found that televised campaign ads sway candidate favorability by about 0.05 points and influence vote choice by an average of 0.7%. The impact of each ad is similar regardless of production, context, or target audience
Researchers found N95 masks reduce cough spread to 0.1-0.25 meters, while uncovered coughs can travel up to 3 meters, and cloth masks can bring spread down to 0.5 meters
Researchers at the Max Planck Institute discovered strong oscillations in conductivity that signal quantum interference over vast distances. The findings require macroscopic quantum coherence and are only possible with ultra-pure materials like delafossites.
A recent study on spall fracture in metals revealed that certain materials can withstand secondary shocks with minimal damage, even without obvious signs of voids and cracks. The researchers found that a specific shock stress could recompact damaged copper targets and create new bonds between the broken surfaces.
New research by Brown physicists reveals that impurities can disrupt the order of a system and cause melting to begin before predicted by theory. The findings provide insight into the solid-liquid transition, which remains poorly understood despite being familiar phenomenon.
Researchers from OIST discovered that curvature at material edges affects wrinkling, with larger windows reducing wrinkles and strain. A theoretical model was developed to explain findings, which could aid in designing devices with functional wrinkles or reduced wrinkling.
Researchers at SISSA and ICTP used atomic physics experiments to simulate the Schwinger model, a gauge theory that describes particle interactions. This study confirms the potential of quantum simulators to investigate fundamental forces and could lead to simulations of complex systems.
A device that simulates borehole ballooning has been developed to help prevent serious drilling accidents and irreversible damage. The device can accurately simulate conditions like fracture opening pressures, rock types, and mud circulation pressures, and its experimental results have validated theoretical research on the topic.
Scientists at the University of Central Florida and partners have successfully created anti-ferromagnetic devices that operate on the terahertz level, paving the way for ultra-fast electronics. This breakthrough technology has the potential to revolutionize guidance systems, communications, and even mimic brain function.
The article highlights the need for a new approach to biosecurity governance, grounded in experimentation. Key findings include the importance of framing governance experiments with hypotheses, developing capacity to quickly identify difficult cases, and fostering cross-biology communities for iterative improvement.
Scientists at the Niels Bohr Institute have successfully controlled bacterial jets to carry strings of microscopic cargos, opening up new possibilities for biological tools and medical applications. The novel approach utilizes a liquid crystal to dictate bacterial movement, suppressing instabilities and enabling precise cargo transport.
Research comparing teen e-cigarette users with those who tried other tobacco products first found that only a tiny proportion of experimental vapers went on to smoke. Young vapers were less likely to smoke than peers trying out other tobacco products, contradicting previous studies linking teen vaping to smoking.
Researchers at the University of Otago have successfully trapped and cooled three individual atoms, allowing them to observe previously unseen complex atomic interactions. This breakthrough has significant implications for future quantum technologies, including the potential to build and control single molecules of particular chemicals.
Researchers at Cornell University found that traditional lab models hinder student engagement, while inquiry-based labs promote active learning and ownership over experiments. Exam scores remained the same, but inquiry-based labs improved student attitudes toward experimentation and scientific thinking.
A long-term study of 200,000 long-distance skiers found they were almost 30% less likely to develop Parkinson's disease. This 'motor reserve' dissipates with time and age.
A team of researchers has found a way to derive quantum field theoretical descriptions for many-particle systems directly from experimental measurements. This breakthrough could simplify the study of complex quantum systems and provide new insights into fundamental questions in physics.
Dr Johann Rafelski reviews decades of work on quark-gluon plasma, exploring strangeness production and discovery methods. He highlights the evolution of understanding this primordial material, which once filled the Universe, and the ongoing experimental efforts to recreate it.
Researchers have discovered a new class of unconventional superconductors that exhibit a surprising 3D metallic state, unlike cuprates. This finding sheds light on how superconductivity arises and opens new directions for experiments and theoretical studies.
A new device created by Aalto University and Lund University has set a new standard for measuring the tiniest energies in superconducting circuits. The calorimeter uses a strip of copper one thousand times thinner than a human hair to detect energy changes, providing essential insights into quantum thermodynamics.
Researchers developed an experimental and theoretical analysis to understand how knots work, revealing key topological factors that determine stability. The framework could be used to design new classes of knots with specific behaviors.
Researchers at MIT have extended Maxwell's electromagnetism to smaller scales, bridging the gap between macroscopic and nanoscale phenomena. The new model incorporates electronic length scales, enabling nonclassical effects such as nonlocality and surface-enabled Landau damping.
The newly discovered Asfaltoventor vialidadi from Patagonia exhibits a unique blend of skeletal traits, challenging current understanding of tetanuran relationships. This finding supports the concept of evolutionary experimentation during periods of rapid diversification and mass extinctions.
A role-playing experiment involving over 300 women from multiple countries suggests that female self-sexualization is linked to income inequality and social status anxiety. The study supports the hypothesis that social climbing and status competition drive sexualization among women.
Researchers found that when déjà vu occurred, subjects experienced a strong 'postdictive' bias, feeling they knew the turn was coming. This bias was linked to feelings of familiarity and hindsight. Déjà vu is often accompanied by intense prediction feelings, but not actual prediction.
A study published in PNAS reveals that DNA helicases unwind the double strand more easily in one direction than the other, with the speed of unwinding depending on the sequence composition of the bases. This discovery has implications for understanding gene expression and the regulation of cellular activities.
The National Science Foundation has announced a new PAWR platform, AERPAW, in Raleigh and Cary, North Carolina, which will focus on wireless communications for unmanned aerial systems (UAS) and ground mobility. The platform aims to accelerate research into the capabilities necessary for mobility systems.
Researchers propose and validate a novel experimental approach to study matter interactions and novel states of matter. They successfully implement a lattice gauge theory using ultracold gas of atoms manipulated by lasers.
Researchers from Dartmouth College and MIT successfully detect and characterize complex non-Gaussian noise processes in superconducting quantum computing systems. This breakthrough advances the development of more precise qubit systems, which is essential for building scalable and high-performing quantum computers.
Scientists have mapped the evolution of complex uranium oxide species, creating a detailed picture of their formation and behavior. This research has practical applications in technologies like laser spectroscopy and verifying nuclear treaty compliance.
Researchers have made the world's first real physical measurements of carbon nanotube conductivity, validating theoretical models and paving the way for improved electrical power cables. The new approach uses identical carbon nanotubes with varying diameters to measure conductivity between them.
Researchers at Imperial College London and the University of Nottingham have tested the possibility of a fifth force acting on single atoms, finding no evidence for its existence. This rules out popular theories of dark energy that modify the theory of gravity, leaving fewer places to search for the elusive force.
German experimental economists conducted the largest laboratory experiment in economic research to date, refuting the theory that individuals lack motivation to participate in public goods due to negligible impact. The study found that visibility of mutual benefits is crucial for collective action in large groups. Cooperative decision-...
Scientists found that certain materials can bend without dislocations, allowing for stronger and more durable materials. This discovery challenges traditional methods of increasing metal strength and flexibility.
Japanese researchers developed a simulation technique that accurately predicts the microstructure of Nickel-Aluminum alloys used in jet engine turbine parts. The method uses first-principle phase field calculations to overcome time-consuming and expensive experimental procedures.
Researchers have discovered a 'hidden' phase in metal oxide materials that gives them ferroelectric properties when activated by fast pulses of light. This breakthrough enables the creation of materials with controllable properties that can be turned on and off in trillionths of a second.
Researchers at Argonne National Laboratory determined the nuclear charge radius difference between boron-10 and boron-11 isotopes. This discovery could aid in precise calculations of other nucleus structures, experimentally validated by laser spectroscopy.
Participants showed improved accuracy in responding to controversial facts after being exposed to others' responses, reducing polarization and partisan bias. This finding contradicts traditional polarization theory and suggests that information sharing within homogeneous networks can increase belief accuracy.
The ABRACADABRA experiment, led by MIT physicists, detected no evidence of axions within a specific mass range. The team reported that axions in this mass range do not exist or have an even smaller effect on electricity and magnetism than previously thought.
A new machine learning methodology was developed by researchers at NCCR MARVEL to capture chemical intuition from partially failed trials. This approach helps chemists improve their synthesis conditions and create novel materials with higher surface areas.
Researchers at IBS confirmed wave spreading mechanisms in a cloud of quantum particles, extending computational horizons from one day to 60 years. They used novel toolbox and Discrete Time Quantum Walks for fast simulations, revealing subdiffusive cloud spreading up to record timescales.
Researchers at Brown University have discovered that graphene crinkles can be used to assemble molecules into linear arrays, known as 'molecular zippers'. This phenomenon enables easier manipulation and study of molecules, which could have applications in studying biomolecules like DNA and RNA.
A research team at the University of Cologne has successfully performed a variant of the double-slit experiment using resonant inelastic X-ray scattering. The experiment provided valuable information about the dynamic physical properties of solids and proved a fundamental theoretical prediction from 1994.
Researchers have developed a new theory to better predict the behavior of nanoclusters when a metal is introduced, reducing experimental time and costs. The theory enables the precise control of nanocluster size, shape, and composition, opening doors for tailored properties in nanotechnology.
Researchers at OIST investigate viscoelastic fluid flow over wavy surfaces, revealing unexpected effects of elasticity. The critical layer, a region where vortices are amplified, is confirmed experimentally for the first time.