Robert Wolkow, University of Alberta (IMAGE) University of Alberta Caption Robert Wolkow, University of Alberta physics professor and the Principal Research Officer at Canada's National Institute for Nanotechnology, has developed a technique to switch a single-atom channel. Credit John Ulan Usage Restrictions None License Licensed content 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.