Artist's Illustration of the Chip (image) University of Bristol Share Print E-Mail Caption Tracks called waveguides guide photons in silicon, much like an optical fiber. Spirals of these waveguides are used to generate photons (quantum particles of light) that are then routed around the processor circuit to perform different tasks. Credit Xiaogang Qiang/University of Bristol Usage Restrictions image is for single use only to illustrate this press release and must not be archived. Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.