Articles tagged with Experimental Physics
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.
A new method for creating digital replicas of rock samples is being developed by geoscience researchers at the University of Texas at Austin. This technique allows scientists to learn about rock samples without touching them and can be used to calculate important rock properties such as permeability and electrical conductivity.
The researchers have demonstrated a world record for the largest spectral, color-tuning range from an atomically thin quantum system. By stretching the material, they induced mechanical expansion of the quantum source, resulting in dramatic tuning range of colors emitted by quantum light.
Researchers from Argonne National Laboratory and CERN studied the neutron-shell structure of a nucleus with fewer protons than lead and more neutrons than 126, revealing new insights into heavy element formation. This study informs models of stellar events and the early universe.
FSU physicists suggest a new, short-lived particle may be responsible for the rare decay of Kaon particles, defying the standard model of physics. Researchers in Japan are conducting further data runs to confirm the observation, which could potentially reveal new insights into fundamental forces.
Researchers have developed a graphene system that combines superconducting, insulating, and ferromagnetic properties, enabling new physics experiments and potential applications in quantum computing. The device was created using an ultrathin trilayer graphene structure with boron nitride layers.
Researchers from JMU have successfully demonstrated the existence of spin centers in boron nitride crystals, exhibiting magnetic dipole moments and optical properties. This discovery paves the way for developing artificial two-dimensional crystals with tailored properties.
Researchers at KOTO reported four rare kaon decays, violating a theoretical connection between charged and neutral kaon decays. The findings could force physicists to modify the standard model if confirmed by further experiments.
By combining pump-probe measurements with theoretical simulations, researchers can now observe the energy flow in acetone at a key energy window between closely related states. This synergy of experimental and theoretical methods provides new insights into light-matter interactions and molecular dynamics.
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.
For the first time, physicists have experimentally demonstrated that certain systems with interacting entities can synchronize only if the entities within the system are different from one another. Researchers found that identical entities naturally behave identically until they start interacting and then identified scenarios in which ...
Water molecules behave differently on bismuth telluride compared to conventional metals, repelling each other and remaining isolated on the surface. This discovery is significant as it suggests an advantage in applications exposed to typical environmental conditions.
Researchers found that impurities swept away in deeper water decrease in size with surface elasticity, while counterflows cancel out fluid movement. In shallow water, the boundary becomes blurred, revealing new processes in well-studied physics experiments.
Researchers at Rutgers University have discovered a new kind of magnetic state in ultra-thin iridium-nickel interfaces, challenging theories on quantum materials. The findings could lead to greater manipulation of quantum materials and deeper understanding of the quantum state for novel electronics.
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 at Graz University of Technology have manipulated ferromagnetic material properties on an electrical field oscillation scale, preserving quantum mechanical wave nature. This breakthrough accelerates technological miniaturization and opens new perspectives for applications in magnetism and electron spin.
Researchers have successfully demonstrated a new method for verifying quantum entanglement in six-photon systems, achieving high confidence levels with low experimental runs. This breakthrough could move the field of quantum technologies forward by making large-scale quantum systems more feasible.
Researchers at IQOQI have developed a new method for quantum simulation that uses a programmable ion trap quantum computer with 20 quantum bits. This allows for complex simulations to be performed efficiently and accurately.
Researchers developed a new 3D simulation tool, Warp+PXR, to understand laser-plasma coupling mechanisms, enabling more detailed understanding of ultra-compact particle accelerators and light sources. The code improves accuracy and scalability, allowing for faster simulations and better understanding of complex physics experiments.
Rice physicists propose experiment to measure fractionalization in ultracold atoms, mimicking electrons in quantum materials. Theoretical framework could provide new insights into high-temperature superconductivity and quantum computing.
Physicists from the University of Würzburg have successfully manipulated a molecule into two stable states by controlling its environment using an electrical field. This breakthrough could enable the creation of molecular switches for spintronics applications, a promising technology for future data processing.
Researchers from the Borexino collaboration confirm previous assumptions about the Sun's fusion processes using a comprehensive analysis of neutrinos from the Sun's core. The results substantiate the standard solar model and reveal an interesting clue to a previously unresolved solar mystery: high metallicity.
A thought experiment by Renato Renner and Daniela Frauchiger reveals a paradoxical situation where indirect observation of a quantum mechanical object yields the opposite result of direct observation. The calculation shows that precisely this is not the case, creating a conundrum. While colleagues have proposed various solutions, none ...
Physicist Rudolf Grimm and colleague Vitali Efimov receive the inaugural Faddeev Medal for their work on Efimov quantum states, a phenomenon predicted to occur in three-body systems. The discovery was confirmed through experiments with ultracold quantum gases.
Benjamin Jones, a UTA physicist, has been awarded $750,000 to develop a sensor for detecting neutrinos, which could help explain the universe's matter-antimatter imbalance. The award supports his research on neutrinoless double beta decay and its potential to illuminate the origin of neutrino particles' small mass.
Scientists have developed a method for detecting molecular fingerprints of toxic, explosive, and polluting substances using surface-enhanced Raman spectroscopy (SERS) with a black silicon (b-Si) substrate. The technique offers high accuracy and non-invasiveness.
Researchers used a supercomputer to simulate the mixing of two magnetically polarized Bose-Einstein condensates, producing exotic shapes that resemble ink blot tests. The study offers clues to phenomena seen in actual experiments and may have implications for ultra-fast computing and classical-quantum fluid connections.
Researchers at OIST have discovered a simple solution to the mystery of transitional flow, a phenomenon that has puzzled engineers for over 130 years. By analyzing individual patches of smooth and chaotic flow, they found that the law of resistance can be applied using Reynolds's original laws.
Researchers trained neural networks on thousands of images from simulated high-energy particle collisions to identify key features. The networks achieved up to a 95% success rate in this analysis. Machine learning algorithms will next be applied to actual experimental data to further advance our understanding of the universe's mysteries.
Researchers from Innsbruck and Vienna teams used artificial intelligence to design new quantum experiments, leveraging a projective simulation model and reinforcement learning. The AI-agent performed tens of thousands of experiments, discovering novel structures that could be tested in the lab.
Researchers at RHIC observed a significant directional preference in neutron production when protons collide with larger gold nuclei, contrasting with previous findings in proton-proton interactions. This unexpected result has implications for understanding particle production mechanisms in high-energy collisions.
A research team from Kiel University has successfully placed a new class of spin-crossover molecules onto a surface and improved their storage capacity. The result could theoretically increase the storage density of conventional hard drives by more than one hundred fold, enabling data carriers to be made significantly smaller.
University of Chicago physicists create thin-core vortices and measure total helicity for the first time, showing it maintains a constant value during viscous fluid flow. The study overcomes experimental challenges by precisely positioning dye using a Sharpie marker, advancing understanding of vortex behavior.
Physicists successfully registered a light atomic nucleus with a deformed shape, challenging the conventional view that such states only exist in massive elements. The discovery was made using a complex experimental method and computational simulations.
An international research team has successfully brought Maxwell's Demon to life using superconducting circuits. The team observed the demon gain useful energy from a thermodynamic system, bypassing the second law of thermodynamics, and tracked how information is stored in its memory.
Benjamin Jones, UTA assistant professor, received the prestigious award for his doctoral thesis on sterile neutrinos in cold climates. His research using the IceCube experiment at the South Pole provided a strong constraint on the existence of sterile neutrinos, ruling out their presence with 99% confidence.
Researchers developed a new framework for faster control of a quantum bit, accelerating switching with unprecedented speed. The technique enables less prone to errors in high-speed operation, paving the way for quantum applications like secure communications and simulation of complex systems.
Physicists at University of Basel successfully generate and measure Majorana fermions, a key component in quantum computing. The team created a wire with single iron atoms and observed the wave properties of Majoranas, making their interior visible for the first time.
Researchers have demonstrated a new type of quantum liquid or quantum droplet state where atoms preserve their form in absence of external confinement due to quantum effects. The discovery opens up a new research area in ultracold quantum gases and may contribute to increasing our knowledge of superfluidity.
The 1950s saw significant advancements in gravity physics through experiments, transforming it into an accepted field of physical science. Robert Dicke's research group pioneered this shift, uncovering empirical evidence that substantiates Einstein's general relativity theory.
Researchers at ETH Zurich have developed a new principle to measure external forces using parametric oscillation. The discovery has advantages for small sensors, enabling the creation of extremely precise force meters.
Researchers at University of Innsbruck successfully simulated lattice gauge theories and particle-antiparticle pairs using a quantum computer. This breakthrough paves the way for studying complex aspects of the Standard Model, complementing high-energy physics experiments.
Physicists have successfully used artificial intelligence to run a complex experiment, replicating the 2001 Nobel Prize-winning experiment. The AI system cooled a gas to extreme temperatures, far colder than outer space, and made precise measurements with unprecedented accuracy.
Researchers at the University of Innsbruck have successfully measured long-range magnetic interactions between ultracold erbium atoms in an optical lattice. This achievement marks an important step towards understanding exotic quantum phases and the behavior of dipolar atoms.
Experimental physicists at Saarland University developed a flexible security solution that can detect changes in the Earth's magnetic field. The sensor cable system issues a warning signal when it registers a change in the field strength, making it ideal for monitoring gardens, driveways, and livestock.
A Duke University theorist proposes that the universe's varied body sizes are a result of internal tension release through hierarchical formation. This concept is rooted in Bejan's constructal law, which states that flowing systems will tend towards easier architecture by releasing tension through smaller, more numerous bodies.
Researchers studied droplet behavior on different coatings to optimize industrial processes like plastic extrusion. The study found that boundary layer velocity influences the flow behavior of small droplets, and atomic-scale surface modifications can alter molecular velocities.
A Japanese physicist has developed new ways to create muonium atoms through particle collisions, offering advancements in detection and applications in proton size measurements. The second method using a positively charged muon colliding with a muonic hydrogen atom shows the most promise for future experiments.