Scientists say they’ve taken a “game changing” leap towards building practical quantum computers that could revolutionise the digital world.

And, as with everything in the world of quantum computers, it’s a game most of us didn’t even know we were playing…

You’re bound to have a lot of questions.

An Australian team has paved the way for production of the first quantum computing “chips” by building a logic gate using new technology based on silicon.

 

Logic gates are the fundamental building blocks of computer circuits – the logically controlled “switches” that allow calculations to be made.

A logic gate acts like a doorman who is instructed to allow people into a night club only if they obey certain rules.

For instance, one common type of gate enforces the electronic equivalent of a rule that says “everyone in your group must wear a tie”. If only one of two people arriving at the door of the club is wearing a tie, neither will be permitted entry.

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