PhysicsTime crystals could be used to build accurate quantum clocks Once considered an oddity of quantum physics, time crystals could be a good building block for accurate clocks and sensors, according to new calculations ¿ìè¶ÌÊÓÆµ
PhysicsThe daring idea that time is an illusion and how we could prove it The way time ticks forward in our universe has long stumped physicists. Now, a new set of tools from entangled atoms to black holes promises to reveal time’s true nature Features