Making photons jump through the right hoops on a chip ultimately means a huge increase in computing speed. Full story Light computer runs quantum algorithm Quantum computers get their speed from interference. But ordinary lightwaves are pretty good at interfering with each other, too, and some researchers are looking to make quantum-like computers without the quantum mechanics. The answer is about five and a half million. Of course, they have to be the right five and a half million.
Prototype shows electronic paper potential Electronic ink made a big splash a few years ago.
But it isn't too useful all by itself. A prototype of electronic paper is starting to fill in the picture. Lasers spin microscopic objects Optical tweezers have been around for years, allowing lab technicians to snatch hapless bacteria in laser beams. All rights reserved.