With her Early Career Research Award, Stanford University associate professor Sigrid Elschot studied the effects of fast-moving, microgram-sized particles that collide with spacecraft. These particles vaporize, ionize, and produce a plasma that radiates electromagnetic energy.
Previous research found that twisted bilayer graphene is superconductive when the layers are rotated by 1.08 degrees. Electrons in parts of these materials move very slowly and should therefore not conduct electricity at all, much less display superconductivity. New research shows how the current theory of superconductivity, the Bardeen-Cooper-Schrieffer (BCS) theory, must be modified to fit the observations of twisted bilayer graphene.
Ammonia-oxidizing microorganisms (AOMs) use ammonia as an energy source while converting it to nitrite and play a pivotal role in the global nitrogen cycle. This study explored whether different AOM species preferred to use urea over ammonia. It found that some AOMs preferred urea while others used ammonia and urea simultaneously.
The Princeton Plasma Innovation Center (PPIC) will be the first new building at the U.S. Department of Energy’s (DOE) Princeton Plasma Physics Laboratory in decades.
For the first time, nuclear physicists made precision measurements of the short-lived radioactive molecule, radium monofluoride (RaF). The researchers combined ion-trapping and specialized laser systems to measure the fine details of the quantum structure of RaF. This allowed them to study the rotational energy levels of RaF and determine its laser-cooling scheme.
Today, the U.S. Department of Energy (DOE) announced $6 million in funding for 12 awards across eight efforts to advance research in isotope enrichment, targetry, and separations. This funding is part of a key federal program that produces critical isotopes otherwise unavailable or in short supply in the U.S.
Spectroscopy allows scientists to study the structure of atoms and molecules, including the energy levels of their electrons. This research examines the potential of spectroscopy techniques that rely on quantum entanglement of these photons. These methods can reveal information about molecules not possible with traditional spectroscopy. They also reduce the damage spectroscopy causes to samples.
Scientists have the first direct evidence that the powerful magnetic fields created in off-center collisions of atomic nuclei induce an electric current in “deconfined” nuclear matter. The study used measurements of how charged particles are deflected when they emerge from the collisions. The study provides proof that the magnetic fields exist and offers a new way to measure electrical conductivity in quark-gluon plasma.
Nickel monosilicide (NiSi), a material widely used to connect transistors in semiconductor circuits, was wrongly predicted by theory to be non-magnetic. Now scientists have used neutron scattering to identify an elusive form of magnetic order in NiSi. This finding could lead to improved semiconductors for computers and computer memory.
The Facility for Rare Isotope Beams (FRIB) has discovered five never-before-seen heavy element isotopes: thulium-182 and 183, ytterbium-186 and 187, and lutetium-190. Researchers found the new isotopes in the debris of collisions between a stable beam of platinum-198 and a carbon target. These results show the potential for FRIB as it increases its capabilities.
The U.S. Department of Energy’s (DOE) Aurora supercomputer has officially broken the exascale barrier. Today at the 2024 ISC High Performance conference in Hamburg, Germany, the 63rd edition of the high performance computing Top500 list announced that DOE holds the #1 and #2 positions for most powerful supercomputers in the world. The Top500’s benchmark has long been the world’s measuring stick for large scale supercomputing performance.
The interactions of protons and neutrons can be too complex to model using conventional computers and quantum computers face reliability issues. This research combined conventional computers and quantum computers to simulate the scattering of two neutrons.
Researchers used advanced computing techniques to engineer the bacteria Pseudomonas putida to optimize its production of isoprenol using carbon from plant material. Isoprenol has a potential role in the production of jet biofuel blendstocks.
Today, the U.S. Department of Energy (DOE) announced $160 million to advance President Biden’s vision to secure the future of American leadership in semiconductor innovation by implementing a key provision in the historic CHIPS and Science Act of 2022 (42 U.S.C. §19331), Microelectronics Research for Energy Innovation.
Theoretical models of dark matter predict that its signals can be detected using low-background radiation detectors. By looking for specific types of dark matter and finding no signal, scientists operating the Majorana Demonstrator experiment have significantly narrowed the characteristics of potential dark matter particles. The results will help design future experiments.
The U.S. Department of Energy (DOE) and the U.S. National Science Foundation (NSF) are thrilled to announce the first 35 projects that will be supported with computational time through the National Artificial Intelligence Research Resource (NAIRR) Pilot, marking a significant milestone in fostering responsible AI research across the nation.
Potassium-40 usually decays to calcium-40, but about 10 percent of the time it decays to argon-40 through electron capture. One variant of this decay path ends in argon-40 in its ground state.
Conventional metals cannot conduct light in their interiors, but scientists have discovered that in the quantum metal ZrSiSe, electrons can give rise to plasmons.
The quark Sivers function describes much of the physics of how quarks are distributed in a proton whose rotation is perpendicular to its direction of motion. This function shows whether more quarks in the proton move to the right than to the left of the plane created by the proton’s velocity and the direction of the proton’s rotation (spin) axis.
X-ray bursts occur on the surface of a neutron star as it absorbs material from a companion star. This absorption initiates a cascade of thermonuclear reactions that create atoms of heavy chemical elements on the surface of a neutron star. Researchers have directly measured one of these reactions, finding it to be four times higher than the previous direct measurement.
RSS
Medicine keyboard_arrow_right
Sciencekeyboard_arrow_right
Life keyboard_arrow_right
Business keyboard_arrow_right
Journal News keyboard_arrow_right
By Location keyboard_arrow_right
Meetings, Grants, and Events keyboard_arrow_right