One of the deepest ambitions in modern physics is understanding how the fabric of space and time could emerge from fundamental quantum degrees of freedom to establish a quantum theory of gravity.

A truly useful quantum computer must be able to run any algorithm, with the same versatility an ordinary laptop offers.

In today’s digital age, there’s little need to buy planners or calendars—almost everything is available on your phone. Still, some people won’t give up a good old-fashioned diary for keeping track of ...