Alain Aspect is a physicist from France, while John F. Clauser is a scientist from the US and Anton Zeilinger is a scientist from Austria. The three scientists have been given this award for their work in.the field of 'quantum mechanics'.
Alain Aspect, John Clauser and Anton Zeilinger have each conducted unprecedented experiments using complex quantum states, where two particles behave as a single entity even when separated. Their results have paved the way for a new technology based on quantum information.