Climate models can be a million lines of code long and can take months to run on supercomputers. A new algorithm has dramatically shortened that time.

Our algorithm can easily be explained by a geometrical interpretation and the time bounds are obtained without the use of any complicated data structure. Furthermore, we show how Wagner and Whitin's ...

He worked on one of the first quantum circuits to run Shor’s algorithm in 2007: a table-top setup that sent photons travelling through the air rather tiny guides on a chip.