| Birth Date: | 14 June 1931 |
| Birth Place: | Chicago |
| Death Place: | Pasadena, California |
| Nationality: | American |
| Fields: | theoretical physics |
| Workplaces: | Caltech |
| Alma Mater: | University of Chicago Caltech |
| Doctoral Advisor: | Robert F. Christy |
| Known For: | Baker-Ball-Zachariasen (BBZ) gluon propagator equation[1] [2] |
| Father: | William Houlder Zachariasen |
| Mother: | Ragni Durban-Hansen |
Fredrik "Fred" Zachariasen (1931–1999) was an American theoretical physicist, known for his collaborative work with Murray Gell-Mann,[3] Sidney Drell,[4] and others.
Fredrik Zachariasen was born in 1931 in Chicago, Illinois. His father was the physicist William Houlder Zachariasen.
Fredrik Zachariasen graduated in 1951 with BS in physics from the University of Chicago[5] and in January 1956 with PhD from Caltech with thesis Photodisintegration of the deuteron.[6] He was a postdoc from 1955 to 1956 at MIT, from 1956 to 1957 at the University of California, Berkeley, and from 1957 to 1958 at Stanford University, where he was an assistant professor from 1958 to 1960.
In 1960 he joined the faculty of Caltech and remained there until he retired in September 1999 as professor emeritus.[5] In 1960 he was a Sloan Research Fellow.
He was a founding member of the JASON Defense Advisory Group, where he worked with Walter Munk on acoustic detection of submarines.
Fredrik Zachariasen's wife Nancy worked as a staff member at the library at the California Institute of Technology. They had two daughters. He died in 1999 in Pasadena, California.
Zachariasen's papers are held in the collection of the California Institute of Technology.[7]