Spanish scientists theorize how to search a quantum network

In Spain, scientists are applying quantum physics principles to Google’s PageRank. That's the proprietary algorithm that lets Google rank pages in search results. In doing so, they believe they could revolutionise the use of the world-famous search engine. In a scientific paper published online last month, they also say they are anticipating the quantum future that hopefully lies just around the corner.

Report: Guy Hedgecoe, Madrid