Ever since Einstein proposed his special theory of relativity, physics and cosmology have been based on the assumption that space looks the same in all directions — that it’s not squeezed in one direction relative to another. A new experiment used partially entangled atoms — identical to the qubits in a quantum computer — to demonstrate more precisely than ever before that this is true, to one part in a billion billion.
Charles H. Townes' inspiration for the predecessor of the laser came to him while sitting on a...
Registration is now open for a workshop on “Improving Data Mobility and Management for...
Researchers have demonstrated that the 1935 Einstein-Podolsky-Rosen quantum mechanics paradox...
Researchers at Japan’s National Institute for Materials Science revealed that improvements should soon be expected in the manufacture of transistors that can be used to make flexible, paper-thin computer screens.The scientists reviewed the latest developments in research on photoactive organic field-effect transistors; devices that incorporate organic semi-conductors, amplify weak electronic signals, and either emit or receive light.
Suddenly, scientists are sexy. With Benedict Cumberbatch nominated for multiple trophies as Alan Turing and Eddie Redmayne turning heads as Stephen Hawking, young British actors playing scientists are all the rage this season. So, it's good timing for the Royal Shakespeare Company, whose new play, Oppenheimer, features John Heffernan as American scientist J. Robert Oppenheimer, leader of the team that developed the first nuclear weapon.
The Bulletin of the Atomic Scientists says Earth is now closer to human-caused doomsday than it has been in more than 30 years because of global warming and nuclear weaponry. But other experts say that's way too gloomy. The advocacy group, founded by the creators of the atomic bomb, moved their famed "Doomsday Clock" ahead two minutes on January 22, 2015. It said the world is now three minutes from a catastrophic midnight.
Just because concrete is the most widely used building material in human history doesn’t mean it can’t be improved. A recent study using DOE Office of Science supercomputers has led to a new way to predict concrete’s flow properties from simple measurements. The results should help accelerate the design of a new generation of high-performance and eco-friendly cement-based materials by reducing time and costs associated with R&D.
Researchers have built a rice-grain-sized laser powered by single electrons tunneling through artificial atoms known as quantum dots. The tiny microwave laser, or "maser," is a demonstration of the fundamental interactions between light and moving electrons. The researchers built the device — which uses about one-billionth the electric current needed to power a hair dryer — while exploring how to use quantum dots.
A quantum network requires efficient interfaces over which information can be transferred from matter to light and back. Physicists have shown how this information transfer can be optimized by taking advantage of a collective quantum phenomenon. The collective interaction between the particles and the resonator can now be tuned in order to enhance the creation of single photons.
Have you ever dreamed about vacationing on another planet? Or wondered what it would be like to explore “strange new worlds”? If so, NASA’s Jet Propulsion Laboratory has created a fictional Exoplanet Travel Bureau that is sure to add fuel to your daydreams. A new exoplanet travel series features travel posters of several planets that the folks at NASA’s Exoplanet Exploration Program think you just might want to check out...
Topology, a branch of mathematics classifying geometric objects, has been exploited by physicists to predict and describe unusual quantum phases: the topological states of matter. These intriguing phases, generally accessible at very low temperature, exhibit unique conductivity properties, which are particularly robust against external perturbations, suggesting promising technological applications.
By analyzing the light of hundreds of thousands of celestial objects, astronomers have created a unique map of enigmatic molecules in our galaxy that are responsible for puzzling features in the light from stars, called diffuse interstellar bands. DIBs have been a mystery ever since they were discovered in 1922 — exactly which of the many thousands of possible molecules are responsible for these features?
The human lament that things in the past were much simpler is an accurate observation made from the perspective of riding along an exponentially increasing complexity curve. Examining the present or looking into the future can be a confusing torrent of concepts, vocabulary and technologies that appear to be spiraling out-of-control. At the First IEEE Integrated STEM Education Conference, Professor Steve Zilora reflected on this increase...
In an interstellar race against time, astronomers were able to measure the space-time warp in the gravity of a binary star and determine the mass of a neutron star — just before it vanished from view. The team measured the masses of both stars in binary pulsar system J1906. The pulsar spins and emits a lighthouse-like beam of radio waves every 144 milliseconds. It orbits its companion star in a little under four hours.
Research conducted at Griffith University may lead to greatly improved security of information transfer over the Internet. Physicists from the Centre for Quantum Dynamics demonstrate the potential for "quantum steering" to be used to enhance data security over long distances, discourage hackers and eavesdroppers and resolve issues of trust with communication devices.
How many stars like our sun host planets like our Earth? NASA’s Kepler Space Telescope continuously monitored more than 150,000 stars beyond our solar system and, to date, has offered scientists an assortment of more than 4,000 candidate planets for further study — the 1,000th of which was recently verified.
Working at temperatures matching the interior of the sun, researchers have been able to determine, for the first time in history, iron’s role in inhibiting energy transmission from the Sun's center to near the edge of its radiative band. Because that role is much greater than formerly surmised, the experimentally derived amount of iron’s opacity helps close a theoretical gap in the Standard Solar Model, used to model the behavior of stars.
In the on-going search for habitable exoplanets, astronomers have been searching for evidence of how planets orbiting distant stars were created. Although planet Earth’s "test kitchen" has provided a detailed recipe, it hasn’t been clear whether other planetary systems followed the same formula. Now, researchers are reporting evidence that the formula for Earth also applies to terrestrial exoplanets orbiting distant stars.
Devising a way to one day land astronauts on Mars is a complex problem, and NASA scientists think something as simple as a child's toy design may help to solve it. Safely landing a large spacecraft on the Red Planet is just one of many challenges the agency faces as it eyes an ambitious goal of sending humans into deep space. NASA has been developing an inflatable heat shield that looks a lot like a super-sized stacking ring of doughnuts.
High-energy jets powered by supermassive black holes can blast away a galaxy’s star-forming fuel, resulting in so-called "red and dead" galaxies: those brimming with ancient red stars yet containing little or no hydrogen gas to create new ones. However, astronomers using ALMA have discovered that black holes don’t have to be nearly so powerful to shut down star formation. They have detected a “perfect storm” of turbulence ...
Prospects of developing computing and communication technologies based on quantum properties of light and matter may have taken a major step forward. In a pioneering study, researchers were able to discover half-light, half-matter particles in atomically thin semiconductors consisting of a 2-D layer of molybdenum and sulfur atoms arranged similar to graphene.
There are no garbage trucks equipped to leave the atmosphere and pick up debris floating around the Earth. But what if we could send a robot to do the job? Scientists at NASA's Jet Propulsion Laboratory are working on adhesive gripping tools that could grapple objects, such as orbital debris or defunct satellites, that would otherwise be hard to handle.
Unlike in mathematics, it is rare to have exact solutions to physics problems. The first exact solution that describes a system expanding at relativistic velocities radially and longitudinally has been presented by researchers. It applies to a wide array of physics contexts and will help to better model galactic structure, supernova explosions and high-energy particle collisions, such as those studied at the Large Hadron Collider at CERN.
Researchers have proved that two peculiar features of the quantum world — previously considered distinct — are different manifestations of the same thing. They found that 'wave-particle duality' is simply the quantum 'uncertainty principle' in disguise, reducing two mysteries to one. The discovery deepens our understanding of quantum physics and could prompt ideas for new applications of wave-particle duality.
NASA's planet-hunting Kepler spacecraft makes a comeback with the discovery of the first exoplanet found using its new mission — K2. The discovery was made when astronomers and engineers devised an ingenious way to repurpose Kepler for the K2 mission and continue its search of the cosmos for other worlds.
COMSOL Server was developed specifically for running applications built with the Application Builder, which allows COMSOL Multiphysics software users to build an intuitive interface around their model that can be run by anyone — even those without prior simulation experience. Applications can be distributed throughout an organization using a Windows-native client or Web browser.
Monstrous moonshine, a quirky pattern of the monster group in theoretical math, has a shadow — umbral moonshine. Mathematicians have proved this insight, known as the Umbral Moonshine Conjecture, offering a formula with potential applications for everything from number theory to geometry to quantum physics.
Several experiments, including the BaBar experiment at the Department of Energy's SLAC National Accelerator Laboratory, have helped explain some — but not all — of the imbalance between matter and antimatter in the universe. Now, a SLAC theorist and his colleagues have laid out a possible method for determining if the Higgs boson is involved.
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