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Feynman diagrams: from complexity to simplicity and back

Harlander, Robert (2021) Feynman diagrams: from complexity to simplicity and back. [Preprint]

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Abstract

The way from the path integral to Feynman diagrams is sketched. The
emphasis is put on the decrease of complexity in this process, from
infinite-dimensional integrals down to the apparent simplicity of
child's play. On the other hand, also the subsequent increase in
complexity when using Feynman diagrams to make realistic physical
predictions is described, thus illustrating the dialectic between the
simplicity and clarity of Feynman diagrams, and the complexity in
their practical applications.


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Item Type: Preprint
Creators:
CreatorsEmailORCID
Harlander, Robertharlander@physik.rwth-aachen.de0000-0002-8715-2458
Additional Information: Accepted for publication in Synthese as part of the topical collection "Simplicity out of Complexity? Physics and the Aims of Science".
Keywords: Feynman diagrams, Path integrals, Complexity, Simplicity
Subjects: Specific Sciences > Physics > Fields and Particles
Specific Sciences > Physics
Specific Sciences > Physics > Quantum Field Theory
Depositing User: Dr. Robert Harlander
Date Deposited: 05 Sep 2021 19:02
Last Modified: 05 Sep 2021 19:02
Item ID: 19510
Subjects: Specific Sciences > Physics > Fields and Particles
Specific Sciences > Physics
Specific Sciences > Physics > Quantum Field Theory
Date: 30 August 2021
URI: http://philsci-archive.pitt.edu/id/eprint/19510

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