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Physicists solve difficult classical problem with one quantum bit PhysOrg Share ![]() ![]() ![]()
Quantum information algorithms have the potential to solve some problems exponentially faster than current classical methods. However, most research on quantum information systems has concentrated on models that use multiple quantum bits. In a new study, physicists have demonstrated how to solve a difficult classical problem that completely encapsulates a quantum model that requires only one quantum bit. Read the APS journal article here. More
Pulsar bursts move 'faster than light' PhysicsWorld Share ![]() ![]() ![]()
Every physicist is taught that information cannot be transmitted faster than the speed of light. Yet laboratory experiments done over the last 30 years clearly show that some things appear to break this speed limit without overturning Einstein's special theory of relativity. Now, astrophysicists in the U.S. have seen such superluminal speeds in space, which could help us to gain a better understanding of the composition of the regions between stars. More Choo-chooing along to aid in measure of neutrons The New York Times Share ![]() ![]() ![]()
This month, at the Princeton Plasma Physics Laboratory, physicists and engineers built tracks inside one of its fusion reactors and ran a toy train on them for three days. The modified model train engine was carrying a small chunk of neutron-emitting californium-252 in order to calibrate detectors in the National Spherical Torus Experiment. More Black hole's mysterious eating disorder solved Space.com Share ![]() ![]() ![]()
New X-ray images of the supermassive black hole at the center of the Milky Way have helped astronomers determine why that black hole is starving. More
Symmetry found hidden in supercold atoms ScienceNews Share ![]() ![]() ![]()
A beautiful piece of mathematics emerges from the acrobatic flips of supercold atoms in a magnetic field, researchers report in the Jan. 8 Science. Scientists detected an elusive, complex symmetry known as the E8 Lie group in resonating particles, a symmetry long analyzed on paper but never seen in a physical system. The work suggests that this numerical grace may be hidden in other physical systems and may provide a mathematical link between quantum processes in condensed matter and the physics of the cosmos. More New pulsars could net gravitational waves PhysicsWorld Share ![]() ![]() ![]()
By combining observations at gamma-ray and radio wavelengths, astronomers have rapidly increased the known number of millisecond pulsars in the Milky Way. The newly discovered pulsars, found using NASA's Fermi Gamma-ray Space Telescope and ground-based radio telescopes, could form part of a galactic-scale observatory for detecting hitherto elusive gravitational waves. More How to make a liquid invisibility cloak NewScientist Share ![]() ![]() ![]()
When J. K. Rowling described Harry Potter's invisibility cloak as "fluid and silvery", she probably wasn't thinking specifically about silver-plated nanoparticles suspended in water. But a team of theorists believe that using such a set-up would make the first soft, tunable metamaterial -- the "active ingredient" in an invisibility device. More Dark matter 'beach ball' unveiled BBC News Share ![]() ![]() ![]()
The giant halo of dark matter that surrounds our galaxy is shaped like a flattened beach ball, researchers say. It is the first definitive measure of the scope of the dark matter that makes up the majority of galaxies' masses. More |
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