“That is the key ingredient which allows for his extraordinarily efficient delivery on Christmas Eve. Santa Claus is in fact exploiting quantum mechanics to deliver the gifts.” The news solves a mystery that has puzzled physicists and scientists for years — how does Santa actually deliver so many presents to so many boys and girls around the world in one night? It will also hearten political leaders and parents who were worried that current restrictions may have impacted Santa’s movement globally. “There is little doubt now to quantum physicists that Santa is exploiting what we know as ‘macroscopic quantum coherence’, which is precisely the same resource used by cutting-edge quantum technologies to outperform technologies based on classical physics,” said Prof Goold.