Work
As a member of Fermi's group in Rome, Wick calculated the magnetic moment of the hydrogen molecule with group-theoretical methods. He extended Fermi's theory of beta decay to positron emission and 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.
While in the United States, Wick made fundamental contributions to quantum field theory, such as the Wick theorem in 1950, which showed how to express calculations in quantum field theory in terms of normally-ordered products and thus derive Feynman rules. 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 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.
Read more about this topic: Gian-Carlo Wick
Famous quotes containing the word work:
“Most women without children spend much more time than men on housework; with children, they devote more time to both housework and child care. Just as there is a wage gap between men and women in the workplace, there is a “leisure gap” between them at home. Most women work one shift at the office or factory and a “second shift” at home.”
—Arlie Hochschild (20th century)
“Since ... six weeks ago, there has been no day in which I have not had letters and visits on the subject of my nomination for the Presidency.... I say very little. I have in no instance encouraged any one to work to that end.... I have said the whole talk about me is on the score of availability. Let availability do the work then.”
—Rutherford Birchard Hayes (1822–1893)
“Weary with toil, I haste me to my bed,
The dear repose for limbs with travel tired;
But then begins a journey in my head
To work my mind, when body’s work’s expired:”
—William Shakespeare (1564–1616)