Our understanding of the world is mostly built on basic perceptions, such as that events follow each other in a well-defined order. Such definite orders are required in the macroscopic world, for which the laws of classical physics apply. However, in the quantum world orders can be 'scrambled'. It is possible for different orders of quantum operations to coexist in a superposition. The current work by a team of physicists from the University of Vienna and the Austrian Academy of Sciences is the first experimental quantification of such a superposition. It will be published in an upcoming issue of "Science Advances".
Michiko Minty heads the group of physicists, engineers, and technicians at Brookhaven Lab responsible for designing, installing, operating, and maintaining equipment that monitors charged particle beams zipping around Brookhaven's accelerators, including RHIC, at nearly the speed of light.
Evgeny Nazaretski and Yong Chu, physicists at the U.S. Department of Energy's (DOE) Brookhaven National Lab, have been recognized by Innovate Long Island as Innovators of the Year for leading the development of the multilayer Laue lens microscope.
Converting CO2 to Methanol, Cryo-Electron Microscopy, Space Dust in 3-D, and More in the DOE Science News Source
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Using ALMA, astronomers have directly observed a pair of Milky Way-like galaxies seen when the universe was only eight percent of its current age. These progenitors of today's giant spiral galaxies are surrounded by "super halos" of hydrogen gas that extend many hundreds-of-thousands of light-years beyond their dusty, star-filled disks.
An international team of astronomers using NASA's Hubble Space Telescope have uncovered a supermassive black hole that has been propelled out of the center of the distant galaxy 3C 186. The black hole was most likely ejected by the power of gravitational waves.
Bjoern Schenke, a theoretical physicist at the U.S. Department of Energy's (DOE) Brookhaven National Laboratory, has been awarded the 2017 Zimanyi Medal in Nuclear Theory.
Very often there are people behind the scenes of scientific advances, quietly organizing the project's logistics. New facilities and big collaborations require people to create schedules, manage resources, and communicate among teams. Brookhaven National Laboratory is lucky to have Xiaofeng Guo in its ranks.
A new Berkeley Lab-led study provides detailed 3-D views of space dust in the Milky Way, which could help us understand the properties of this dust and how it affects views of distant objects.
Hans Dehmelt -- Nobel Laureate and University of Washington Professor Emeritus -- Has Died at Age 94
Hans Georg Dehmelt, Nobel physics laureate and professor emeritus at the University of Washington, died in Seattle on March 7, 2017 at age 94. Dehmelt was a celebrated scientist who developed methods to isolate atoms and subatomic particles and measure their fundamental properties with high accuracy.
Two of the most iconic telescopes on Earth - the Very Large Array, or VLA as its known, and ALMA, the trailblazing Atacama Large Millimeter/submillimeter Array - are helping us understand our cosmic origins, but their stories are just beginning. New technology and future expansions will greatly enhance their abilities, revealing never-before-seen details of the cosmos. Two astronomers explain the latest discoveries and future upgrades for these powerful instruments.
While the ability to easily control the magnetic properties of small electronic systems is highly desirable for future small electronics and data storage, an effective solution has proven to be extremely elusive. But now, a group of researchers from universities in Chile and Brazil are reporting this week in the Journal of Applied Physics, a simple way to gain control of magnetism that starts by controlling the shape of the systems.
Polystyrene has a glass transition temperature of about 100 C -- at room temperature it behaves like a solid material. But as its temperature approaches the glass transition temperature, polystyrene's mechanical properties change drastically. This makes the ability to approximate glass transitions for confined geometries in polymers highly desirable. And now, as researchers report in this week's issue of The Journal of Chemical Physics, they've developed a simple formula to do just that.
In just a few years, researchers have achieved remarkable power conversion efficiency with materials with perovskite crystal structure, comparable with the best photovoltaic materials available. Now, researchers have revealed the physics for how an important component of a perovskite solar cell works -- a finding that could lead to improved solar cells or even newer and better materials. They describe their experiments in this week's issue of the journal Applied Physics Letters.
Magnetic tunnel junctions (MTJs) have played a central role in spintronic devices, and researchers are working to improve their performance. A prominent achievement that accelerated the technology's practical applications was the realization of giant tunnel magnetoresistance (TMR) ratios by using rock-salt type MgO crystalline barrier. In this week's Applied Physics Letters, researchers have succeeded in applying MgGa2O4 to a tunnel barrier, the core part of an MTJ, as an alternative material to more conventional insulators.
A New Model for Capillary Rise in Nano-Channels Offers Insights Into Improved Hydraulic Fracturing (Fracking)
With fracking, scientists have calculated the expected level of capillary rise with the Lucas-Washburn equation, a mathematical model whose earliest parameters were first devised nearly a century ago. The challenge, however, is that that the equation has not been completely accurate in predicting the actual rise observed in nano-capillary laboratory experiments. Researchers studying this deviation describe their findings this week in the journal Applied Physics Letters.
A new computer simulation helps explain the existence of puzzling supermassive black holes observed in the early universe. The simulation is based on a computer code used to understand the coupling of radiation and certain materials.
The study offers a novel solution where a sub-nano sensor uses graphene to sense a crack as soon as it starts nucleation, or after the crack has spread a certain distance. This technology could quickly become viable for use in the next generation of electronics.
The inner Van Allen belt has less radiation than previously believed, according to a recent study in the Journal of Geophysical Research. Observations from NASA's Van Allen probes show the fastest, most energetic electrons in the inner radiation belt are actually much rarer and harder to find than scientists expected. This is good news for spacecraft that are orbiting in the region and can be damaged by high levels of radiation.
A physicist has created a new system that will let scientists control the energy and rotation of plasma in real time in a doughnut-shaped machine known as a tokamak.
Astronomers using the Hubble Space Telescope have found what may be the missing piece of a cosmic puzzle; the third, long-lost member of a star system in the Orion Nebula that broke apart 500 years ago.
Kirby Runyon wants to make one thing clear: Regardless of what one prestigious scientific organization says to the contrary, Pluto is a planet. So, he says, is Europa, commonly known as a moon of Jupiter, and so is the Earth's moon, and so are more than 100 other celestial bodies in our solar system that are denied this status under the prevailing definition of "planet."
New research from the University of Warwick generates fresh insight into how a raindrop or spilt coffee splashes.
Protostar Blazing, Space Weather Experiment, Mega Meteorite, ALMA News, and More in the Space News Source
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Proteins shake their bodies and wave their limbs -- essentially dancing -- all with the goal of optimizing their interaction with other molecules, including other proteins. A new study shows that, in biological courtship, dance moves matter. The findings help to lay a foundation for the development of drugs targeting molecular vibrations. Such pharmaceuticals would block proteins from carrying out tasks that contribute to disease.