Closing in on 'holy grail' of room temperature quantum computing chips: Photons interact on chip-based system with unprecedented efficiency

To process information, photons must interact. However, these tiny packets of light want nothing to do with each other, each passing by without altering the other. Now, researchers have coaxed photons into interacting with one another with unprecedented efficiency -- a key advance toward realizing long-awaited quantum optics technologies for computing, communication and remote sensing.