Edwin Albrecht Uehling (January 27, 1901 – May 18, 1985) was an American

theoretical physicist Theoretical physics is a branch of physics that employs mathematical models and abstractions of physical objects and systems to rationalize, explain, and predict natural phenomena. This is in contrast to experimental physics, which uses experi ...

known for the formulation of the Uehling potential to describe

vacuum polarization In quantum field theory, and specifically quantum electrodynamics, vacuum polarization describes a process in which a background electromagnetic field produces virtual electron–positron pairs that change the distribution of charges and curr ...

quantum electrodynamics In particle physics, quantum electrodynamics (QED) is the Theory of relativity, relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quant ...

. He also worked in

condensed matter physics Condensed matter physics is the field of physics that deals with the macroscopic and microscopic physical properties of matter, especially the solid and liquid State of matter, phases, that arise from electromagnetic forces between atoms and elec ...

, particularly in the field of

ferroelectricity In physics and materials science, ferroelectricity is a characteristic of certain materials that have a spontaneous electric polarization that can be reversed by the application of an external electric field. All ferroelectrics are also piezoel ...

Life

After his bachelor's degree from the

University of Wisconsin–Madison The University of Wisconsin–Madison (University of Wisconsin, Wisconsin, UW, UW–Madison, or simply Madison) is a public land-grant research university in Madison, Wisconsin, United States. It was founded in 1848 when Wisconsin achieved st ...

in 1925, he worked at

Bell Telephone Laboratories Nokia Bell Labs, commonly referred to as ''Bell Labs'', is an American industrial research and development company owned by Finnish technology company Nokia. With headquarters located in Murray Hill, New Jersey, Murray Hill, New Jersey, the compa ...

radio frequency Radio frequency (RF) is the oscillation rate of an alternating electric current or voltage or of a magnetic, electric or electromagnetic field or mechanical system in the frequency range from around to around . This is roughly between the u ...

communication, where he wrote several patents. He received his PhD from the

University of Michigan The University of Michigan (U-M, U of M, or Michigan) is a public university, public research university in Ann Arbor, Michigan, United States. Founded in 1817, it is the oldest institution of higher education in the state. The University of Mi ...

in 1932 on the quantum theory of transport processes, advised by

George Uhlenbeck George Eugene Uhlenbeck (December 6, 1900 – October 31, 1988) was a Dutch-American theoretical physicist, known for his significant contributions to quantum mechanics and statistical mechanics. He co-developed the concept of electron spin, alo ...

. His research lead to his famous paper on

and the formulation of the now-called Uehling potential. As described by Uehling theory, the effects of vacuum polarization were later confirmed with the discovery of the

Lamb shift In physics, the Lamb shift, named after Willis Lamb, is an anomalous difference in energy between two electron orbitals in a hydrogen atom. The difference was not predicted by theory and it cannot be derived from the Dirac equation, which pre ...

in 1947. After his PhD he left for a ten-month collaboration with

Werner Heisenberg Werner Karl Heisenberg (; ; 5 December 1901 – 1 February 1976) was a German theoretical physicist, one of the main pioneers of the theory of quantum mechanics and a principal scientist in the German nuclear program during World War II. He pub ...

in the Institute of Theoretical Physics in

Leipzig University Leipzig University (), in Leipzig in Saxony, Germany, is one of the world's oldest universities and the second-oldest university (by consecutive years of existence) in Germany. The university was founded on 2 December 1409 by Frederick I, Electo ...

. When Uehling returned to the United States, he took a position at

RCA Laboratories RCA Corporation was a major American electronics company, which was founded in 1919 as the Radio Corporation of America. It was initially a patent trust owned by General Electric (GE), Westinghouse, AT&T Corporation and United Fruit Company ...

. In 1934, he went to work with

J. Robert Oppenheimer J. Robert Oppenheimer (born Julius Robert Oppenheimer ; April 22, 1904 – February 18, 1967) was an American theoretical physics, theoretical physicist who served as the director of the Manhattan Project's Los Alamos Laboratory during World ...

in Berkeley and Pasadena funded by the National Research Council. During

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, Uehling was recruited as a member of the antisubmarine warfare operations research group of the Tenth Fleet. He was awarded the President's Certificate of Merit by the United States government in early 1947 for his scientific contributions to the team during the war. Uehling was also interested in

nuclear magnetic resonance Nuclear magnetic resonance (NMR) is a physical phenomenon in which nuclei in a strong constant magnetic field are disturbed by a weak oscillating magnetic field (in the near field) and respond by producing an electromagnetic signal with a ...

and ferroelectrics. He codeveloped the Senko–Uehling–Schmidt theoryNamed after Michael E. Senko, V. Hugo Schmidt and Uehling. of

to describe monopotassium phosphate (). He worked in the

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 ...

since 1936, he formally retired in 1971, but continued to work as emeritus professor until 1984. He was elected in 1941 a Fellow of the

American Physical Society The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of ...

. He was a

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 ...

for the academic year 1955–1956. During post-war related tensions and the investigations of espionage related to the

Manhattan Project The Manhattan Project was a research and development program undertaken during World War II to produce the first nuclear weapons. It was led by the United States in collaboration with the United Kingdom and Canada. From 1942 to 1946, the ...

, president of the University of Washington Henry Schmitz denied professorship to Oppenheimer in 1954. Uehling, then the chairman of the physics department, tried various times to revert the president decision. Uehling appealed to the university senate with a speech on

academic freedom Academic freedom is the right of a teacher to instruct and the right of a student to learn in an academic setting unhampered by outside interference. It may also include the right of academics to engage in social and political criticism. Academic ...

. The university committee ruled against the university president and Oppenheimer was allowed lectureship. Schmitz later apologized to Oppenheimer in 1956.

References

Notes

{{DEFAULTSORT:Uehling, Edwin Albrecht 1901 births 1985 deaths 20th-century American physicists University of Wisconsin–Madison alumni University of Washington faculty Fellows of the American Physical Society

Life

See also

References

Notes