Nowadays, computers contain many millions of logic gates in the form of electronic circuits. (sciencedaily.com)
A quantum logic gate on its own does not constitute a quantum computer, but you can't build the computer without them. (sciencedaily.com)
Scientists have also shown that ions, under certain conditions, can be made to perform quantum gates — logical operations between two quantum bits, similar to logic gates in classical circuits. (sciencedaily.com)