And you thought light moves fast

时间:2019-03-06 03:03:01166网络整理admin

By Justin Mullins SO MUCH for the ultimate speed limit. Scientists in Switzerland have measured how fast information can flow in the quantum world and have clocked it travelling 1500 times faster than light. The Swiss speed trap involved pairs of “entangled” photons. Once linked, the pair behave as one, even if the photons are on opposite sides of the Universe. Physicists don’t think this flouts the light-speed limit enshrined in relativity. “You cannot use this effect to communicate, it’s not like ordinary information,