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

Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th s ...

, was Professor of Chemistry,

University of Washington The University of Washington (UW, simply Washington, or informally U-Dub) is a public research university in Seattle, Washington. Founded in 1861, Washington is one of the oldest universities on the West Coast; it was established in Seattle a ...

Seattle Seattle ( ) is a seaport city on the West Coast of the United States. It is the seat of King County, Washington. With a 2020 population of 737,015, it is the largest city in both the state of Washington and the Pacific Northwest regio ...

, WA, US (1961 - 1984, 2002 - 2020) and

Indiana University Indiana University (IU) is a system of public universities in the U.S. state of Indiana. Campuses Indiana University has two core campuses, five regional campuses, and two regional centers under the administration of IUPUI. *Indiana Universit ...

, Bloomington, IN, US (1984 - 2002). He graduated from

Wiley High School Terre Haute South Vigo High School is a public high school located in Terre Haute, Indiana. As the name implies, the school's district covers the southern portion of Terre Haute, as well as most of southern Vigo County, the county in which Terre ...

, Terre Haute and

Rose Polytechnic Institute A rose is either a woody perennial flowering plant of the genus ''Rosa'' (), in the family Rosaceae (), or the flower it bears. There are over three hundred species and tens of thousands of cultivars. They form a group of plants that can be e ...

(BS Chemical Engineering), Terre Haute, and

(PhD Theoretical Chemistry), Bloomington, IN. His name is associated with both the

Davidson correction The Davidson correction is an energy correction often applied in calculations using the method of truncated configuration interaction, which is one of several post-Hartree–Fock ab initio quantum chemistry methods in the field of computational ...

and the " Davidson diagonalization" method which he applied to configuration interaction 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 member of the International Academy of Quantum Molecular Science (1981) and Fellow of the

American Association for the Advancement of Science The American Association for the Advancement of Science (AAAS) is an American international non-profit organization with the stated goals of promoting cooperation among scientists, defending scientific freedom, encouraging scientific respons ...

(1985) and the

National Academy of Sciences The National Academy of Sciences (NAS) is a United States nonprofit, 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 Nati ...

(1987). In 2001, he was awarded the National Medal of Science.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 Theoretical chemists Rose–Hulman Institute of Technology alumni Schrödinger Medal recipients Computational chemists {{US-chemist-stub