Articles tagged with Atomic Physics
Five UTDallas faculty members received CAREER awards for research on resilient networks, next-generation electronics, software security and mathematical understanding of complex systems. Researchers aim to improve network resilience, develop new semiconductor technologies and advance mathematical understanding of complex systems.
Researchers have identified four distinct thorium-229 sites in calcium fluoride, which affects the nuclear transition and is crucial for future solid-state nuclear clocks. The study provides foundational data for designing compact nuclear clocks, enabling advances in navigation, synchronized communication, and precision measurement.
Shunkai, developed by Professor Kenji Ohmori's team, integrates multiple layers for practical quantum computing, overcoming scalability and error correction challenges. The system uses 50 qubits initially, with plans to expand to 500 qubits, and will be partially open to external users for application development and demonstration.
Pusan National University researchers have successfully developed a hybrid quantum network with indistinguishable quantum sources. The team demonstrated two-photon interference between a warm atomic ensemble and quantum dots, achieving high-visibility two-photon interference without needing spectral or temporal modifications.
Researchers at Osaka Metropolitan University developed a practical imaging technique to visualize surface plasmon polaritons, electromagnetic waves traveling along metal surfaces. The method uses quantum dots to create sensitizers that can capture images of the waves under normal laboratory conditions.
Scientists have successfully prepared and studied radium molecules precisely with lasers in tabletop experiments, marking a breakthrough in understanding the universe's matter-antimatter asymmetry. The new method can be applied to other atoms to create similarly chilled molecules.
Researchers unveiled a technique to build ultra-clean 2D heterostructures using muscovite crystals, eliminating microscopic residues that disrupt electronic device performance. This method enables precise stacking of atomic layers, leading to new properties and potential breakthroughs in quantum computing and nanoelectronics.
Researchers discovered a maximum amount of electrical resistance that can occur due to electron collisions, offering insights into what causes resistivity at the microscopic level. The study found that when interactions between atoms become too strong, the resistivity caused by collisions eventually stops rising and saturates.
Scientists have successfully synthesized a new fullerene material that exhibits metallic behavior even under cryogenic temperatures. This discovery challenges conventional understanding of the Mott metal-insulator transition and has significant implications for future electronics and quantum technologies.
Researchers at Colorado State University have measured a hydrogen proton's radius to be 0.84 femtometers, resolving the long-standing scientific discrepancy that has puzzled scientists for years. The finding confirms the Standard Model theory and opens a door for further study, revealing subtle issues in earlier measurements.
Researchers use a single rubidium atom trapped in an optical tweezer as a scanning probe to image fine structures of light patterns with spatial resolution surpassing the diffraction limit. The technique successfully visualizes both light intensity and polarization distributions at the nanoscale.
Researchers at Johannes Gutenberg University Mainz have made new constraints on dark matter particles using precision measurements of barium monofluoride molecules. The study found bounds on hypothetical Z' bosons that mediate electron-nucleus interactions, potentially shedding light on dark matter.
Researchers at Stockholm University propose a novel approach to detecting gravitational waves by tracking how they reshape the light emitted by atoms. This method could help distinguish the signal from noise and encode the wave's direction and polarization.
Scientists from the University of Manchester led the discovery of the new Ξcc+- (Xi-cc-plus) particle, a heavy proton-like particle containing two charm quarks and one down quark. The particle was identified using the upgraded LHCb detector and has a mass of 3619.97 MeV/c².
A team from Tokyo Metropolitan University successfully detects laser-assisted electron scattering using circularly polarized light, shedding light on atomic scale helicity and its impact on electron-matter interaction. The signal agrees with theory, but further work is needed to improve detection efficiency and accuracy.
Giant superatoms combine two quantum-mechanical constructs to suppress decoherence and create entanglement, opening opportunities for scalable and reliable quantum systems. This breakthrough enables quantum information to be protected, controlled, and distributed in new ways.
A team of physicists identified the dominant mechanism responsible for energy release in molybdenum-93m using high-precision experiments. Inelastic nuclear scattering is confirmed to be the primary driver of isomer depletion under experimental conditions, contradicting previous hypotheses about nuclear excitation by electron capture.
Researchers at Tokyo University of Science demonstrate matter-wave diffraction in a short-lived electron-positron atom, marking a major advancement in fundamental physics. The findings pave the way for new research using positronium and could enable sensitive tests of gravity.
Researchers develop novel approach to isolate density fluctuations from signal measurements, achieving superior long-term stability. The method uses a three-dimensional atomic density model and neural networks to estimate and compensate for these disturbances in real-time.
Columbia physicists develop new method to scale neutral-atom arrays using metasurfaces, enabling creation of 2D arrays with thousands of trapped atoms. The technology has the potential to benefit quantum computing and other neutral-atom quantum technologies.
Researchers have discovered a new 'Island of Inversion' in the most symmetric region of the nuclear chart, where protons and neutrons equal each other. This finding challenges long-held assumptions about structural inversions and provides insights into fundamental forces that bind matter together.
A new study from Mizzou's College of Veterinary Medicine analyzed the effects of radioactive iodine therapy on thyroid cancer in dogs. The research found that tailoring the dose of radiation more precisely for each dog could improve outcomes and potentially lead to more targeted care.
Researchers at MIT introduce the concept of a neutrino laser that uses cooled radioactive atoms to produce amplified neutrino beams. By cooling rubidium-83 to near absolute zero, the team predicts accelerated radioactive decay and production of neutrinos. This innovation could lead to new applications in medicine and communication.
The sPHENIX detector precisely measured particles from high-speed collisions, revealing properties of quark-gluon plasma. This achievement enables scientists to reconstruct the early universe's conditions.
Scientists at Goethe University Frankfurt have directly measured the correlated zero-point motion of a molecule's atoms for the first time, revealing complex patterns of vibrational modes. The experiment uses Coulomb Explosion Imaging to generate high-resolution images of the molecule's structure.
MIT physicists performed an idealized version of the double-slit experiment, confirming light behaves as both a particle and wave. The more information obtained about light's path, the lower the visibility of the interference pattern was.
Researchers at MURR have optimized Terbium-161 for radiopharmaceutical use, enabling targeted destruction of cancer cells with high-energy electrons. The breakthrough could add extra therapeutic effectiveness to existing treatments without requiring new drug development.
Researchers at the Chinese Academy of Sciences have discovered aluminium-20, an unstable isotope that decays via three-proton emission. The study provides insights into the structure and decay of nuclei beyond the proton drip line, shedding light on isospin symmetry breaking.
Researchers successfully confirmed long-standing 'electron tunneling' phenomenon, revealing surprising interactions between electrons and atomic nuclei during tunneling. The study's findings have significant implications for advanced technologies like semiconductors, quantum computers, and ultrafast lasers.
Researchers have discovered a simple way to protect atoms from losing information by shining a single laser beam on them, reducing spin relaxation rates. The technique uses light to subtly shift atomic energy levels, aligning spins and keeping them in sync even as they collide with each other or surroundings.
The study confirms QED theory by measuring the g-factor of lithium-like tin with high precision. The experimental value agrees well with the theoretical prediction within the uncertainty of the calculation.
The University of Texas at Arlington's ATLAS Experiment team has made significant contributions to the discovery of the Higgs boson particle. The team's work on the Large Hadron Collider at CERN led to a Noble Prize in 2013 and has earned them a $1 million Breakthrough Prize in Fundamental Physics.
Researchers at MIT have captured the first images of individual atoms freely interacting in space, visualizing never-before-seen quantum phenomena. The technique allows scientists to directly observe correlations among 'bosons' and fermions, shedding light on their behavior and interactions.
Heavy nuclei at the neutron drip line exhibit weak binding due to coupling between nucleus-bound states and continuum spectrum. Researchers find that isospin asymmetry saturation affects Coulomb energy and symmetry energy, while deformation energy resists augmented proton charge. They also discover a correlation between magic numbers a...
A novel model predicts critical energy barriers governing heavy-ion fusion reactions with high accuracy, enabling the synthesis of superheavy nuclei and improving nuclear physics experiments. The model's effective nucleus-nucleus potential combines Skyrme energy density functional with reaction Q-values.
The 56th Annual Meeting of the American Physical Society's Division of Atomic, Molecular and Optical Physics will present new research on quantum computing, lasers, and Bose-Einstein condensates. Over 1,200 physicists from around the world will convene in Portland, Oregon, June 16-20.
Researchers at A1 Collaboration successfully produced hydrogen-6 in an electron scattering experiment, challenging current understanding of multi-nucleon interactions. The measurement revealed a stronger interaction between neutrons within the nucleus than expected, indicating a lower ground-state energy for ⁶H.
A novel AI framework, MULGONET, improves cancer recurrence prediction by integrating genomic, epigenetic and transcriptomic data. The model overcomes limitations of traditional machine learning models by automatically linking genes to biological processes, enabling trans-cancer applicability.
A new laser-based device can analyze gas samples with high precision, detecting molecules at minute concentrations. The technology has potential applications in medical diagnostics, tracking greenhouse gas emissions, and more.
A new photocatalytic chemical mechanical polishing (PCMP) slurry has been developed for Single Crystal Diamond (SCD) polishing, resulting in exceptionally smooth surfaces with minimal damage. The Material Removal Rate (MRR) peaks at 1168 nm·h−1, emphasizing the efficiency and effectiveness of this advanced polishing technique.
Researchers at Lancaster University have successfully demonstrated negative refraction using atomic arrays, eliminating the need for metamaterials. This achievement paves the way for novel technologies based on negative refraction, including perfect lenses and cloaking devices.
Researchers at NIST have created a new thermometer using Rydberg atoms, allowing for accurate temperature measurements in fields like quantum research and industrial manufacturing. The thermometer's sensitivity could improve temperature readings by tracking energy jumps caused by blackbody radiation.
Researchers Carsten Ullrich and Deepak Singh have discovered a new type of quasiparticle in all magnetic materials, challenging previous understanding of magnetism. This finding could lead to the development of faster, smarter, and more energy-efficient electronics.
Researchers from Chinese Academy of Sciences questioned traditional spin statistics rules in high-energy ion-atom collisions, revealing a breakdown of these assumptions. By measuring spin-resolved cross-section ratios, the study uncovered novel findings with implications for understanding atomic and molecular reactivity.
Computer simulations point the way towards better solar cells by gaining crucial insights into what influences properties of 2D perovskite materials. Researchers have discovered that the choice of organic linkers can directly control how atoms in surface layers move, affecting optical properties.
The US Department of Energy has awarded $975,000 to researchers at the University of Arkansas to study aluminum scandium nitride, a ferroelectric material that could be integrated into existing silicon computing platforms. This research aims to create faster computers with lower energy consumption.
A new model based on the Langevin equation offers insights into exotic nuclei formation, enhancing the production of rare isotopes for scientific and medical applications. The model simplifies complex nuclear reactions by focusing on key physical processes, reducing adjustable parameters and improving energy dissipation predictions.
Researchers from the University of Jyväskylä have measured more detailed data on the magic N=50 neutron shell closure in the silver isotope chain. The new information improves state-of-the-art theoretical models, benefiting the global description of the atomic nucleus.
The Rice-led MURI project aims to develop innovative single-atom reactor systems and analyze various chemical processes of strategic importance to the DOD. The researchers, led by Naomi Halas, seek to improve energy efficiency and reduce protocol intensity in chemical reactions.
Researchers predicted promising reactions for creating double magic nuclei, such as <sup> 298 </sup> Fl and <sup> 304 </sup> 120. These elements could have unique properties and deepen understanding of atomic forces. The study is a step closer to the 'Island of Stability', where long-lasting superheavy nuclei might exist.
Researchers from Harbin Institute of Technology propose a catalytic strategy to modulate the mass transport and decomposition reaction kinetics of Li₂C₂O₄. The study reveals single-atom Ni sites promote significantly promoted decomposition kinetics, increasing decomposition efficiency by 786%.
The researchers have successfully demonstrated quantum entanglement between electronic and motional states in their ultrafast quantum simulator, generating a new quantum simulation method including repulsive force between particles. This achievement is expected to improve the fidelity of two-qubit gate operations and realize socially u...
Researchers used neural networks to solve fundamental equations in complex molecular systems, achieving promising results in simulating excited states of molecules. This breakthrough could lead to practical uses in materials science and chemical synthesis.
Researchers at the University of Arizona developed a transmission electron microscope with attosecond temporal resolution, allowing scientists to observe electron motion in real-time. This breakthrough enables studies of ultrafast processes at the atomic level, paving the way for advancements in physics and chemistry.
Scientists have developed a technique that illuminates the mechanisms underlying many chemical reactions by determining the 3D atomic coordinates, chemical makeup, and surface composition of heterogeneous nanocatalysts. This discovery enables engineers to rationally design nanocatalysts for optimized performance.
Researchers have found a special spatially varying superconducting state, one-dimensional superconducting stripes, induced by ferromagnetic proximity effect in an oxide heterostructure composed of EuO and KTaO3. The discovery reveals the intricate coupling between superconductivity and magnetism at oxide interfaces.
Researchers at MIT and LBNL created a simplified array of four pixels in tetromino shapes to detect radiation direction, achieving accuracy comparable to large expensive systems. The design reduces engineering costs while improving performance for handling multiple radiation sources.
Researchers have developed a reliable and efficient computational method to find transition states in chemical reactions, reducing computational costs by 50-70%. The new method outperforms existing methods like Nudged Elastic Band (NEB), achieving high accuracy in identifying transition states in 98% of cases.
Physicists at the University of Southampton successfully detect weak gravitational pull on microscopic particles using a new technique. The experiment, published in Science Advances, could pave the way to finding the elusive quantum gravity theory.
A team of researchers from the Max Born Institute has demonstrated a new approach to all-attosecond pump-probe spectroscopy using a compact intense attosecond source. This enables the investigation of extremely fast electron dynamics in the attosecond regime, which is not accessible by current attosecond techniques.