Quantum Link (image) ETH Zurich Share Print E-Mail Caption The ETH quantum link in Andreas Wallraff's laboratory. The tube at the centre contains the strongly cooled waveguide that connects the two quantum chips in their cryostats via microwave photons. Credit ETH Zurich Department of Physics / Heidi Hostettler Usage Restrictions None 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.