Defects in solids, unwanted imperfectness in the past, become one of the promising candidates for the physical platform of quantum information science. Since the first work in 1997, a vast number of applications and developments based on different kinds of defects has been made in quantum physics, such as quantum memory and quantum repeaters for quantum communications, quantum computing nodes and various quantum sensors. During this talk, we will explain the advantages of using defects in solids, and present recent developments in the quantum optics and the sensing of both quantum phase transitions and classical phase transitions in extreme conditions.
Sen Yang is an Assistant Professor in the department of physics, The Chinese University of Hong Kong. He got his B.S. from Tsinghua University and Ph.D. in University of California, San Diego. He had worked in University of Texas at Austin and University of Stuttgart before joining CUHK in 2016. His research focuses on quantum optics and quantum physics in solid state systems.