Experiments clearly show that unrecorded measurements unavoidably disturb the state of the system being measured for quantum (but not classical) systems. Now researchers have described a protocol that can retrieve some of the lost information....
A new world record for quantum teleportation has been set, bringing quantum communication networks that can stretch between cities a step closer. Two independent teams have transferred quantum information over several kilometers of fiber optic networks.
What we thought was the largest supernova ever observed might in fact be the death gasp of a star being swallowed by a black hole. The flash, called ASASSN-15lh, was spotted in June 2015 in the All Sky Automated Survey for SuperNovae (ASAS-SN)....
"Ghost imaging" generates images by analysing correlations between two light beams, the more powerful of which doesn't bounce off the object in question. The technique has already been demonstrated at visible and infrared wavelengths, but now two groups of scientists –...
No one said detecting dark matter would be easy. We didn't even know about the stuff until a couple of decades ago, after all, despite the fact that it represents some 85 percent of all of the mass in the universe and is what's responsible...
Dark matter is one of the great unsolved mysteries of modern astronomy. We’ve reached the point where we know most matter in the cosmos is made of matter that interacts weakly with light if at all, but drives much of the gravitational interactions between galaxies.
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