Ernest R. Davidson, born October 12, 1936, in

Terre Haute Terre Haute ( ) is a city in Vigo County, Indiana, United States, and its county seat. As of the 2020 census, the city had a population of 58,389 and its metropolitan area had a population of 168,716. Located along the Wabash River about e ...

Indiana Indiana ( ) is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders Lake Michigan to the northwest, Michigan to the north and northeast, Ohio to the east, the Ohio River and Kentucky to the s ...

, is a former professor of chemistry,

University of Washington The University of Washington (UW and informally U-Dub or U Dub) is a public research university in Seattle, Washington, United States. Founded in 1861, the University of Washington is one of the oldest universities on the West Coast of the Uni ...

(1961–1984, 2002–2020) and

Indiana University Indiana University (IU) is a state university system, system of Public university, public universities in the U.S. state of Indiana. The system has two core campuses, five regional campuses, and two regional centers under the administration o ...

- Bloomington (1984–2002). He graduated from Wiley High School, Terre Haute and Rose Polytechnic Institute (BS chemical engineering), Terre Haute, and

(PhD theoretical chemistry), Bloomington, Indiana. His name is associated with both the Davidson correction and the " Davidson diagonalization" method which he applied to

configuration interaction Configuration interaction (CI) is a post-Hartree–Fock linear variational method for solving the nonrelativistic Schrödinger equation within the Born–Oppenheimer approximation for a quantum chemical multi-electron system. Mathemati ...

methods. He is the author of over 400 publications, including ''Reduced Density Matrices in Quantum Chemistry'', Academic Press, 1976. He has been awarded many honors, including

Guggenheim fellow Guggenheim Fellowships are grants that have been awarded annually since by the John Simon Guggenheim Memorial Foundation, endowed by the late Simon and Olga Hirsh Guggenheim. These awards are bestowed upon individuals who have demonstrated d ...

in 1974, member of the

International Academy of Quantum Molecular Science The International Academy of Quantum Molecular Science (IAQMS) is an international scientific learned society covering all applications of quantum theory to chemistry and chemical physics. It was created in Menton in 1967. The founding members we ...

(1981) and Fellow of the

American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is a United States–based international nonprofit with the stated mission of promoting cooperation among scientists, defending scientific freedom, encouraging scientific responsib ...

(1985) and the

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, NGO, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the ...

(1987). In 2001, he was awarded the

National Medal of Science The National Medal of Science is an honor bestowed by the President of the United States to individuals in science and engineering who have made important contributions to the advancement of knowledge in the fields of behavioral science, behavior ...

.National Science Foundation - The President's National Medal of Science
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References

His International Academy of Quantum Molecular Science page

External links

His home page containing all his publications
1936 births Living people Members of the United States National Academy of Sciences National Medal of Science laureates Members of the International Academy of Quantum Molecular Science Fellows of the American Physical Society American theoretical chemists Rose–Hulman Institute of Technology alumni Schrödinger Medal recipients American computational chemists {{US-chemist-stub