Boson-Sampling Computers Could Rival Quantum Computers (3 of 6) (image) American Association for the Advancement of Science Share Print E-Mail Caption The boson sampling experiments were performed on silica-on-silicon photonic chips. This photo shows such a chip (bottom center) during the fabrication process, where ultraviolet lasers (center) are focused into a doped layer of silica to create a localized refractive index increase. The chip is moved on a precision translation stage to trace out the desired circuit geometry (see figure 2A in the manuscript). This image relates to a paper that appeared in the Dec. 20, 2012, issue of Science Express, published by AAAS. The paper, by Justin Spring at University of Oxford in Oxford, UK, and colleagues was titled, "Boson Sampling on a Photonic Chip." Credit Image courtesy of Dr. James C. Gates Usage Restrictions Please cite the owner of the image when publishing. This image may be freely used by reporters as part of news coverage, with proper attribution. Non-reporters must contact Science for permission. 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.