Fig. 1 (IMAGE) Hong Kong University of Science and Technology Caption The theoretical group at HKUST: Prof. Junwei Liu (left) and his PhD student, Mr Chun Yu Wan (right). Credit HKUST Usage Restrictions HKUST License Original 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.