Chun C. Lin is Professor of Physics at the University of Wisconsin – Madison. He has been working in various areas of atomic and molecular physics for several decades. He received the American Physical Society Will Allis Prize “for advancing the understanding of the microscopic behavior of ionized gases through his innovative and pioneering studies of excitation in electron and ion collisions with atomic and molecular targets? in 1996. He is a Fellow of the American Physical Society and has served as the Chair of the Division of Atomic, Molecular and Optical Physics in the American Physical Society (1994 – 1995).