After a successful trial at a substation, China plans to expand the application of quantum technologies – including precision sensors and computer simulations – across its power grid to help prevent blackouts.During the 18-month trial in Hefei in Anhui province, quantum technology was used to rapidly detect and diagnose equipment defects and faults in the power system, according to a report published on Wednesday by the party mouthpiece People’s Daily.Quantum technology harnesses the physics...