The Genesis of Feynman Diagrams. Wuethrich A.

The Genesis of Feynman Diagrams



Download The Genesis of Feynman Diagrams



The Genesis of Feynman Diagrams Wuethrich A. ebook pdf
Publisher: Springer
Language: English
Page: 221
ISBN: 9048192277, 9789048192274

Review

Wuethrich delves into the creative thinking of Richard Feynman and takes the reader on an exciting tour that leads from the early, groping attempts to understand quantum electrodynamics using inadequate graphical representations to the powerful diagrams that bear Feynman's name. Guided by Wuethrich's reconstruction of this path, we develop a deeper understanding of why the Feynman diagrams are what they are: they mediate and represent a deep conceptual change that was brought about by modern QED. Wuethrich's approach to a better understanding of the core concepts of QED by focussing on the emergence of its key representational tool is a masterful combination of historical reconstruction and conceptual analysis. Tilman Sauer, Einstein Papers Project, California Institute of Technology, Pasadena, CA,

From the Back Cover

In a detailed reconstruction of the genesis of Feynman diagrams the author reveals that their development was constantly driven by the attempt to resolve fundamental problems concerning the uninterpretable infinities that arose in quantum as well as classical theories of electrodynamic phenomena. Accordingly, as a comparison with the graphical representations that were in use before Feynman diagrams shows, the resulting theory of quantum electrodynamics, featuring Feynman diagrams, differed significantly from earlier versions of the theory in the way in which the relevant phenomena were conceptualized and modelled. The author traces the development of Feynman diagrams from Feynman's "struggle with the Dirac equation" in unpublished manuscripts to the two of Freeman Dyson's publications which put Feynman diagrams into a field theoretic context. The author brings to the fore that Feynman and Dyson not only created a powerful computational device but, above all, a new conceptual framework in which the uninterpretable infinities that had arisen in the old form of the theory could be precisely identified and subsequently removed in a justifiable manner.



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