Jan Myrheim (born 14 February 1948) is a Norwegian physicist.
He was then appointed as a professor of theoretical physics at the Norwegian University of Science and Technology.
[1] Together with Jon Magne Leinaas he discovered that in one and two spatial dimensions, there is a possibility of having fractional quantum statistics.
[3] This is of particular importance in two dimensions where fractional statistics particles, usually referred to as anyons, play an important role in the theory of the fractional quantum Hall effect.
The duo shared the Fridtjof Nansen Excellent Research Award in Science in 1993.