Each atom carries a small magnetic moment called spin. These spins influence each other. If you give one of them a push, they will start moving together in a very specific way. Atoms can feel each other.
An international team have succeeded in transforming 20 entangled quantum bits into a state of superposition. This is an important step in the development of quantum computers after the old record of 14 qubits remained unchanged since 2011.
Physicists have performed a variation of the famous 200-year-old double-slit experiment that, for the first time, involves "exotic looped trajectories" of photons.
A primer on quantum computers. One day they could change the world.
