Business and science: Quantum computing around the world

It's a rapidly emerging technology that has the potential to solve problems at an incredible pace. At the moment its uses are limited but that hasn’t stopped investment rolling into the sector and businesses from making money as the technology develops around the world. Gareth Mitchell speaks to three different quantum businesses to discuss its viability and its risk. Presenter: Gareth Mitchell Producer: Hannah Mullane (Image: Quantum entanglement. Credit: Getty Images)