Boris Vladimirovich Svistunov received his MSc in physics in 1983 from Moscow Engineering Physics Institute, Moscow, Russia. In 1990, he received his PhD in theoretical physics from Kurchatov Institute (Moscow), where he worked from 1986 to 2003 (and is still affiliated with). In 2003, he joined the Physics Department of the University of Massachusetts, Amherst. Egor Sergeevich Babaev received his MSc in physics in 1996 from St. Petersburg State Polytechnical University and A. F. Ioffe Physical Technical Institute, St. Petersburg, Russia. In 2001, he received his PhD in theoretical physics from Uppsala University (Sweden). In 2007, after several years as a postdoctoral research associate at Cornell University, he joined the faculty of the Physics Department of the University of Massachusetts, Amherst. He is currently a faculty member at the Royal Institute of Technology, Sweden. Nikolay Victorovich Prokof'ev received his MSc in physics in 1982 from Moscow Engineering Physics Institute, Moscow, Russia. In 1987, he received his PhD in theoretical physics from Kurchatov Institute (Moscow), where he worked from 1984 to 1999. In 1999, he joined the Physics Department of the University of Massachusetts, Amherst.
