PhysicsQuantum trick sees two things happen before and after each otherBy placing the order of two events into a quantum superposition, physicists have probed the nature of causality51¶¯Âþ
TechnologyRecord number of ions get entangled together in a quantum trap The ions could act as qubits in a quantum simulator to search for new properties of metals, or act as a quantum computer – if we can control them individually 51¶¯Âþ