Best of Last Week—Black holes don’t erase information, a stick computer and the exploding head syndrome

(—It was another good week for physics as a team of researchers with the University of Waterloo found that a photon “afterglow” could transmit information without transmitting energy—though the receiver must expend energy to read that information. Also good news for physicists trying to solve the “information loss paradox”—a team of researchers has found a way to show that black holes don’t erase information—they claim that interactions between particles emitted by a black hole can be used to reveal information about material that “disappeared” inside of it. Also a team of researchers in China has for the first time performed machine learning on a photonic quantum computer—and claim it could speed up the rate at which certain machine learning tasks are performed. —> Read More