Climbing the Mountain: The Scientific Biography of Julian Schwinger

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Oxford University Press, Aug 14, 2003 - Science - 677 pages
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Julian Schwinger was one of the leading theoretical physicists of the twentieth century. His contributions are as important, and as pervasive, as those of Richard Feynman, with whom (and with Sin-itiro Tomonaga) he shared the 1965 Nobel Prize for Physics. Yet, while Feynman is universally recognized as a cultural icon, Schwinger is little known even to many within the physics community. In his youth, Julian Schwinger was a nuclear physicist, turning to classical electrodynamics after World War II. In the years after the war, he was the first to renormalize quantum electrodynamics. Subsequently, he presented the most complete formulation of quantum field theory and laid the foundations for the electroweak synthesis of Glashow, Weinberg, and Salam, and he made fundamental contributions to the theory of nuclear magnetic resonance, to many-body theory, and to quantum optics. He developed a unique approach to quantum mechanics, measurement algebra, and a general quantum action principle. His discoveries include 'Feynman's' parameters and 'Glauber's' coherent states; in later years he also developed an alternative to operator field theory which he called Source Theory, reflecting his profound phenomenological bent. His late work on the Thomas-Fermi model of atoms and on the Casimir effect continues to be an inspiration to a new generation of physicists. This biography describes the many strands of his research life, while tracing the personal life of this private and gentle genius.
  

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Contents

A New York City childhood
1
Julian Schwinger at Columbia University
22
Schwinger goes to Berkeley
54
During the Second World War
90
Winding up at the Radiation Lab going to Harvard
134
Quantum electrodynamics and Julian Schwingers path
208
the triumph
251
Greens functions and the dynamical action principle 298
298
Electroweak unification and foreshadowing of
411
The Nobel Prize and the last years at Harvard
445
Move to UCLA and continuing concerns
481
Taking the road less traveled
528
The diversions of a gentle genius
567
Appendices
627
B Ph D Students of Julian Schwinger
639
Index of names
645

The world according to Stern and Gerlach
337
Custodian of quantum field theory
371

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About the author (2003)


Jagdish Mehra has been University Distinguished Professor of Sciences and Humanities at the University of Houston, Texas for many years and also served as UNESCO-Sir Julian Huxley Distinguished Professor of Physics and The History of Science at Trieste and Paris. He has published extensively on the historical and conceptual development of modern physics and is the acclaimed biographer of 'The Beat of a Different Drum: The Life and Science of Richard Feynman'. From Spring 1959 until Schwinger's death, Mehra remained his close friend. Kimball A. Milton is Professor of Physics at the University of Oklahoma, where he leads the theoretical high-energy physics group. He has numerous publications in the field of quantum field theory. He was a student of Julian Schwinger at Harvard and was his postdoctorate associate at UCLA for nearly a decade.

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