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8 apr 2024 · Julian Seymour Schwinger (born Feb. 12, 1918, New York, N.Y., U.S.—died July 16, 1994, Los Angeles, Calif.) was an American physicist and joint winner, with Richard P. Feynman and Tomonaga Shin’ichirō, of the Nobel Prize for Physics in 1965 for introducing new ideas and methods into quantum electrodynamics.
15 apr 2024 · The lectureship commemorates the scientific legacy of Columbia Alumnus Julian Schwinger (BA 1936, PhD 1939), whose scientific work fundamentally advanced theoretical physics and and its applications to fields ranging from high energy particle physics to condensed matter physics and electrical engineering and whose ideas profoundly ...
3 giorni fa · The latter mechanism was first calculated by Julian Schwinger in 1951, for the production of electron-positron pairs out of a sufficiently strong electric field. At a strength above 10^{18} Volts per meter, an electric field can accelerate a virtual electron-positron pair up to its rest mass over the spatial scale of its wavefunction and create pairs of opposite electric charges out of the vacuum.
6 giorni fa · The breakthrough eventually came around 1950 when a more robust method for eliminating infinities was developed by Julian Schwinger, Richard Feynman, Freeman Dyson, and Shinichiro Tomonaga. The main idea is to replace the calculated values of mass and charge, infinite though they may be, by their finite measured values.
10 apr 2024 · The question, traced back to Julian Schwinger (Glashow's PhD thesis advisor) was how to give a mass to them, being Yang-Mills fields, without spoiling gauge invariance. Glashow inserted such mass terms by hand but gauge invariance requires zero mass and so, he spoiled it.
18 ore fa · He shared the prize with Japan’s Shinichiro Tomonaga and Julian Schwinger, then of Harvard, for work in quantum electrodynamics. He was loath to spell out, in layman’s terms, why he won. “Hell, if I could explain it to the average person, it wouldn’t have been worth the Nobel prize.” This is what the Nobel Prize webpage say on his work:
4 giorni fa · Edited By Kimball Milton, Julian Schwinger. April 29, 2024. Classical Electrodynamics captures Schwinger's inimitable lecturing style, in which everything flows inexorably from what has gone before. This anniversary edition offers a refreshing update while still maintaining Schwinger’s voice.
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