"One of the most fundamental concepts in the study of physics is the idea of symmetry. Yet, Nature as we know it does not always seem to be perfectly symmetrical. ...[T]he principal theme for this current work is motivated by none other than the apparent between matter and antimatter in the universe. Therefore, along with the appeal of symmetry, a major topic of interest is the mechanism of symmetry breaking or asymmetry creation."
January 1, 1970