Advancing quantum computing with a new remote measurement method
In the future, quantum computers could be able to communicate with each other over long distances thanks to a recent development by SNSF-supported researchers at the University of Geneva.
What happens in the quantum world often defies our everyday understanding. According to quantum theory, two particles can become entangled – a state in which their properties remain linked even if they are physically light-years apart. If one changes, the other reflects the change simultaneously and exactly. This phenomenon can be utilised to encode complex information and enable communication between quantum computers, even over long distances. Until recently, however, measuring these changes remotely was thought to be impossible. Now, a team from Geneva has overcome this obstacle. Their mathematical method could make such remote measurements feasible, and, in the future, help unlock new applications for quantum computing.