Daniel Harry Friedan (born October 3, 1948)[1] is an American theoretical physicist and one of three children of the feminist author and activist Betty Friedan.
Friedan earned his Ph.D. from the University of California, Berkeley in 1980 and was named a MacArthur Fellow in 1987.
His current research focuses on applications to quantum computers.
Friedan received the 2010 Lars Onsager Prize from the American Physical Society "for seminal work on the classification and characterization of two-dimensional unitary conformal field theories of critical states.
Daniel is married to an Icelandic physics teacher, Ragnheiður Guðmundsdóttir.