Photons (image) University of Vienna Caption This is a picture of the optical network -- the central part of the Vienna boson sampling computer. According to the laws of quantum physics, the photons seem to take different paths simultaneously as shown in the image. Credit Copyright: Philip Walther Group, University of Vienna Usage Restrictions The image may only be used with appropriate caption or credit 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.