Carl Bender, Ph.D. (left), the Wilfred R. and Ann Lee Konneker Distinguished Professor of Physics in Arts & Sciences, and his son, Michael A. Bender, Ph.D., associate professor of computer science at State University of New York (SUNY) Stony Brook, share a light moment during the 2009 Quantum Mechanics in the Complex Domain conference, held at Washington University March 27 and 28. Some 60 mathematical physicists from around the world attended the conference, which recognized Carl Bender on the 40th anniversary of the publication of his landmark paper, “Anharmonic Oscillator,” in Physical Review in 1969. With more than 1,000 citations, it is one of the most cited papers in quantum mechanics — the physics of very small, submicroscopic or atomic particles that underlies nearly all modern science and technology. “It is one of the most influential and mathematically profound papers written on quantum mechanics in the latter half of the 20th century,” said Barry McCoy, Ph.D., Distinguished Professor of Physics at SUNY Stony Brook and winner of the Heineman Prize for Mathematical Physics.