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Louis W. Witten
Louis W. Witten
Born	April 13, 1921 (age 103); Baltimore, Maryland, U.S.
Nationality	American
Alma mater	Johns Hopkins University (PhD) ; Princeton University ; University of Maryland; MIT (postdoctoral research)
Known for	Electrovacuum solution
Children	4, including Edward Witten and Matt Witten
	Scientific career
Fields	Gravitation
Institutions	Princeton University; Martin Marietta Corporation; University of Cincinnati; University of Florida
Thesis	A Model of an Imperfect Gas
Doctoral advisor	Theodore H. Berlin

Louis Witten (born April 13, 1921)^[1] is an American theoretical physicist and the father of the physicist Edward Witten. Witten's research has centered on classical gravitation, including the discovery of certain exact electrovacuum solutions to the Einstein field equation.

Early life and education

Louis Witten was born to a Jewish family in Baltimore, Maryland. His parents, Abraham Witten and Bessie Perman, emigrated to the United States from Eastern Europe as teenagers in 1909 and were married in 1916. Witten graduated as a Civil Engineer from Johns Hopkins University in 1941. From 1942 to 1946 he served in the US Army Air Forces as a Radar Weather Officer.^{[citation needed]}

He was a graduate student in physics at The Johns Hopkins University from 1948 to 1951 when he received the PhD degree. His dissertation, in statistical mechanics, was entitled "A Model of an Imperfect Gas". His thesis advisor was Theodore H. Berlin.^[2] In 1949 he married Lorraine Wollach of Baltimore. They had four children, Edward, Celia, Matthew, and Jesse. Lorraine died in 1987. In 1992 he married Frances Lydia DeLange.

Academic career

After postdoctoral study at Princeton University, the University of Maryland, and the Lincoln Laboratory of MIT, Witten joined RIAS, the research laboratory of the Martin Marietta Corporation. In 1968 he became a Professor of Physics at the University of Cincinnati where he remained until his retirement in 1991. He is also emeritus at the University of Florida. Since 1968 he has been a Vice-President and Director of Science Affairs of the Gravity Research Foundation.

He participated in a conference held at the 1957 Chapel Hill Conference "to discuss the role of gravitation in physics".

He edited a book^[3] (see citation below) which contains papers by contributors such as ADM (Richard Arnowitt, Stanley Deser and Charles W. Misner), Yvonne Choquet-Bruhat, Jürgen Ehlers and Wolfgang Kundt, Joshua N. Goldberg, and Felix Pirani which are used by researchers after the passage of more than 40 years. His most recent paper was published in 2020.^[4]