Doctor of Philosophy, University Rochester, 1987.
Postdoctoral fellow University Rochester, 1987—1988. Research associate University Minnesota, 1989—1991. Assistant professor Hanseo University, 1993—1994, Hanyang University, Ansan, Republic of Korea, 1995—1997, associate professor, 1998—2002, professor physics, since 2002.
Board trustee Korean Creation Association, Seoul, since 2000. Director Hanyang Volunteer Corps. Head HYU Center Students with Special Needs.
Fellow: International Society Complexity Information and Design.
Married Sujin Choi, February 16, 1993. Children: Ohchan, Jihee, Ohsong.