Toward practical quantum computers: Built-in optics could enable chips that use trapped ions as quantum bits
Quantum computers are largely hypothetical devices that could perform some calculations much more rapidly than conventional computers can. Instead of the bits of classical computation, which can represent 0 or 1, quantum ...
Quantum computers promise speedy solutions to some difficult problems, but building large-scale, general-purpose quantum devices is a problem fraught with technical challenges.
The significant advance, by a team at the University of New South Wales (UNSW) in Sydney appears today in the international journal Nature.
Researchers have developed an ultrafast light-emitting device that can flip on and off 90 billion times a second and could form the basis of optical computing.