The tantalum isotope, Ta-180m, is found naturally in a long-lived excited state. However, the radioactive decay of this excited state in Ta-180m has never been observed.
Researchers at the U.S. Department of Energy’s Argonne National Laboratory have created a new material that uses “redox gating” to control the movement of electrons in and out of a semiconducting material.
Theoretical models can fill the gaps in experimental physics, but using a single imperfect theoretical model can be misleading. To improve the quality of predictions, researchers created a machine learning method that combines the results of several imperfect models.
Our Senior Fellow Professor Enge Wang recently visited HKIAS between 4 March to 8 March 2024 and participated in academic exchanges at City University of Hong Kong (CityUHK).
Neutron star mergers are a treasure trove for new physics signals, with implications for determining the true nature of dark matter, according to research from physicist Bhupal Dev at Washington University in St. Louis.
Early in Hertz Fellow Alex Siegenfeld’s PhD program, he found himself unmotivated by his research and knew something had to change. His turning point overlapped with the 2016 Hertz Summer Workshop, where he discussed his concerns with other fellows.
Hertz Fellow Katelin Schutz thinks existing experimental data across many fields of physics and cosmology can be re-analyzed through a “dark matter lens.”
Stimulated Raman scattering is a powerful spectroscopic technique that unveils molecular vibrational and rotational information, providing invaluable insights into the composition and dynamics of diverse materials. A novel approach for stimulated Raman scattering spectroscopy has been introduced, utilizing offset-phase controlled femtosecond-pulse bursts. This innovative technique not only achieves very high spectral resolution but also enables high-speed spectral acquisition. By broadening the applications of stimulated Raman scattering, it represents a noteworthy advancement in spectroscopic capabilities.
From televisions to X-ray machines, many modern technologies are enabled by electrons that have been juiced up by a particle accelerator. Now, Jefferson Lab has teamed up with General Atomics and other partners to unlock even more applications. The team has designed, built and successfully tested a prototype of a key component of particle accelerators that could enable novel industrial applications of accelerators.
With time scheduled to use a certain beamline at the National Synchrotron Light Source-II (NSLS-II), scientists from NSLS-II and their partner institutions faced a challenge. They planned on researching a special type of region in magnetic materials that could be useful for next-generation computers. Regions in magnetic materials - called magnetic domains - determine a material's magnetic properties. The scientists wanted to study how these magnetic domains changed over time under the influence of an outside magnetic field.
Fashioned from the same element found in sand and covered by intricate patterns, microchips power smartphones, augment appliances and aid the operation of cars and airplanes. Now, PPPL scientists are developing codes that will outperform current simulation techniques and aid the production of microchips using plasma.
Dark matter comprises over 80% of all matter in the cosmos but is invisible to conventional observation, because it seemingly does not interact with light or electromagnetic fields. Now Dr. Sukanya Chakrabarti, the Pei-Ling Chan Endowed Chair in the College of Science at The University of Alabama in Huntsville (UAH), along with lead author Dr. Tom Donlon, a UAH postdoctoral associate, have written a paper to help illuminate just how much dark matter there is in our galaxy and where it resides by studying the gravitational acceleration of binary pulsars. Chakrabarti gave a plenary talk on this work and other methods to measure galactic accelerations at the 243rd meeting of the American Astronomical Society in New Orleans in January.
Thanks to the rapid progress in tiny tech, we've been mainly using microfluidics to sort tiny particles by size. But now, there's a new way to sort them by shape, which could be a big deal for medical tests and chemistry. This study shows off a new method using sound waves to separate oddly shaped particles from round ones, without needing any labels.
A new analysis by the STAR collaboration at the Relativistic Heavy Ion Collider (RHIC), a particle collider at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory, provides the first direct evidence of the imprint left by what may be the universe’s most powerful magnetic fields on “deconfined” nuclear matter. The evidence comes from measuring the way differently charged particles separate when emerging from collisions of atomic nuclei at this DOE Office of Science user facility.
Kun Luo is combining his experience in materials experimentation and theoretical simulations to explain the atomic mechanisms that create special properties in high-performance materials.
A Princeton-led team composed of engineers, physicists, and data scientists from the University and the Princeton Plasma Physics Laboratory (PPPL) have harnessed the power of artificial intelligence to predict — and then avoid — the formation of a specific plasma problem in real time.
A Rutgers professor who studies and improves the design of algorithms – human-made instructions computers follow to solve problems and perform computations – has been selected to receive a 2024 Sloan Research Fellowship.
Aaron Bernstein, an assistant professor in the Department of Computer Science in the School of Arts and Sciences at Rutgers University-New Brunswick, was named one of 126 researchers drawn from a select group of 53 institutions in the U.S. and Canada.
Korea Institute of Fusion Energy(KFE) announced revealed that their researchers have successfully increased the lithium extraction rate by three times compared to pre-existing methods by applying CO2 microwave plasma technology.
A multi-institutional team reports the first look at electrons moving in real time in liquid water. Their findings could affect studies of radiation-induced processes, such as those in space travel, cancer treatments, nuclear reactors and legacy waste.
In creating five new isotopes, an international research team working at the Facility for Rare Isotope Beams, or FRIB, at Michigan State University has brought the stars closer to Earth.
The U.S. Department of Energy (DOE) today announced a call for nominations for the 2025 Ernest Orlando Lawrence Award, one of the longest running and most prestigious science and technology awards given by the U.S. government.
A team including University of Idaho researchers is going to explore the physics of supermassive black hole mergers and galaxy collisions, unlocking secrets that could reshape science’s understanding of one of the universe’s most enigmatic processes.
In our most basic understanding of our Solar System, planets are drawn into the orbit of our massive star, the Sun. But what happens to planet-sized objects that don’t have a star? A team of astronomers studying Jupiter-mass binary objects (JuMBOs) in the Orion Nebula are gaining a new understanding of these unusual systems.
Scientists working with the powerful telescopes at Georgia State’s Center for High Angular Resolution Astronomy (CHARA) Array have completed a survey of a group of stars suspected to have devoured most of the gas from orbiting companion stars.
100 billion – there are at least that many stars in our Milky Way. It seems like an unimaginable number. Yet astrophysicists study structures in our universe that are far bigger than galaxies alone.
Polarimetry is playing an indispensable role in modern optics with enhanced compact and resolution requirements. Towards this goal, Scientist in China proposed a neural network assisted polarimetry based on a tri-channel chiral metasurface.
Supercontinuum (SC) white light generation in gases through ultrafast laser filamentation is in principle immune to damage. However, the bottleneck problem is that the strong jitters from filament induced self-heating at kHz repetition level.
Scientists have new evidence that gluons have a positive spin polarization, meaning the spins of individual gluons are aligned in the same direction as the spin of the proton they are in.
Reliable quantum gates are the fundamental component of quantum information processing. However, achieving high-dimensional unitary transformations in a scalable and compact manner with ultrahigh fidelities remains a great challenge.
It may be snowy outside, but the water in the SNO+ experiment isn’t for building snowmen. SNO+ is short for the Sudbury Neutrino Observation+, a neutrino experiment 2 kilometers underground in a mine in Ontario, Canada.
Employing massive data sets collected through NASA’s James Webb Space Telescope, a research team led by a Rutgers University–New Brunswick astronomer is unearthing clues to conditions existing in the early universe. The team has catalogued the ages of stars in the Wolf–Lundmark–Melotte (WLM) galaxy, constructing the most detailed picture of it yet, according to the researchers.
Ata Sarajedini, Ph.D., was elected for his contributions to the field of resolved stellar populations as applied to the formation and evolution of star clusters and galaxies, extensive service to the astronomical community through leadership of committees, and outstanding efforts in public service such as hosting the “Astronomy Minute” podcast.
In a significant leap forward for quantum nanophotonics, a team of European and Israeli physicists, introduces a new type of polaritonic cavities and redefines the limits of light confinement. This pioneering work, detailed in a study published today in Nature Materials, demonstrates an unconventional method to confine photons, overcoming the traditional limitations in nanophotonics.
A team of Rice University researchers mapped out how flecks of 2D materials move in liquid ⎯ knowledge that could help scientists assemble macroscopic-scale materials with the same useful properties as their 2D counterparts.
Representatives of France's National Center for Scientific Research (CNRS) and the U.S. Department of Energy (DOE) have signed a new "Statement of Interest" in future cooperation on the Electron-Ion Collider (EIC), a unique facility for exploring the building blocks of matter and the strongest force in nature.
Researchers from the National University of Singapore (NUS) have developed a transmissive thin scintillator using perovskite nanocrystals, designed for real-time tracking and counting of single protons.
Irvine, Calif., Jan. 31, 2024 — Researchers at the University of California, Irvine and Los Alamos National Laboratory, publishing in the latest issue of Nature Communications, describe the discovery of a new method that transforms everyday materials like glass into materials scientists can use to make quantum computers.
Rice University scientists have discovered a first-of-its-kind material, a 3D crystalline metal in which quantum correlations and the geometry of the crystal structure combine to frustrate the movement of electrons and lock them in place.
Irvine, Calif., Jan. 29, 2024 – A recently discovered solar system with six confirmed exoplanets and a possible seventh is boosting astronomers’ knowledge of planet formation and evolution.
The “green gap” is described as the lack of suitable green LEDs. In a new study, researchers at the University of Illinois Urbana-Champaign have found a potential path to fill the green gap with an ultimate goal to "triple the efficiency of today’s white light emitting diodes."