Gian Carlo Wick

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Gian Carlo Wick
Wick ordering
Wick product
Wick rotation
Wick's theorem
AwardsHeineman Prize (1967)
Matteucci Medal (1980)
Scientific career
FieldsPhysics (theoretical)
Doctoral advisorGleb Wataghin

Gian Carlo Wick (15 October 1909 – 20 April 1992) was an Italian

Wick contraction, Wick's theorem, and the Wick product are named after him.[1]

Life

Gian Carlo Wick, first name "Gian Carlo",[2] was born in Turin, Italy in 1909. Wick's father was a Latinist and Greekist,[3] and his mother, Barbara Allason (1877–1968), was a well-known Italian writer and anti-fascist. His paternal grandfather had emigrated from Switzerland to Italy and his grandmother from Austria.

In 1930 Wick received his doctoral degree in Turin under G. Wataghin with a thesis on the electronic theory of metals. He then went to Göttingen and Leipzig to further his study of physics. One of the professors he got to know there was Werner Heisenberg. Heisenberg liked the young Italian theoretician—they shared a common interest in classical music—and treated him with an affection that Wick never forgot. Once a week, Heisenberg had invited Wick and other students to his home for spirited evenings of talk and Ping-Pong.[4]

Wick became

Carnegie Institute of Technology in Pittsburgh in 1951. He remained there until 1957, interrupted by stays at the Institute for Advanced Study in Princeton and at CERN in Geneva. In 1957 he became chief of the theory department at Brookhaven National Laboratory. In 1965 he became a tenured professor at Columbia University in New York City, where he collaborated with Tsung-Dao Lee; after his retirement from Columbia he worked at the Scuola Normale Superiore in Pisa.[1]

In 1967 he received the

United States National Academy of Sciences and the Accademia dei Lincei.[1]

Wick was an avid mountain climber. He was twice married and had two sons.[1]

Work

As a member of Fermi's group in Rome, Wick calculated the magnetic moment of the

K-capture, and explained the relationship between the range of a force and the mass of its force carrier particle. He also worked on slowing down of neutrons in matter, and joined a group of Italian physicists led by Gilberto Bernardini which made the first measurement of the lifetime of the muon.[1]

While in the United States, Wick made fundamental contributions to quantum field theory, such as the

Feynman rules.[1] He also introduced the Wick rotation, in which computations are analytically continued from Minkowski space to four-dimensional Euclidean space using a coordinate change to imaginary time[6] He developed the helicity formulation for collisions between particles with arbitrary spin, worked with Geoffrey Chew on the impulse approximation, and worked on meson theory, symmetry principles in physics, and the vacuum structure of quantum field theory.[1]

Selected bibliography

References

  1. ^ a b c d e f g Gian-Carlo Wick, October 15, 1909—April 20, 1992, Maurice Jacob, biographical memoir, National Academies Press. Accessed on line October 6, 2009.
  2. ISBN 9810223692
    .
  3. ^ "Wick Gian Carlo". SIUSA Archivi di Personalità (in Italian). Retrieved January 8, 2022.
  4. ^ Gian Carlo Wick, The Catcher was a Spy, Nicholas Dawidoff, New York 1994 p.178
  5. ^ Hardman J. UC Berkeley: The Loyalty Oath Controversy 1949-51 ,
  6. ^
    Bibcode:1975AuJPh..28....7O
    .
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