By Gunter Scharf
The e-book starts off with Dirac's idea, through the quantum idea of loose fields and causal perturbation conception, a strong strategy that avoids ultraviolet divergences and solves the infrared challenge by way of the adiabatic restrict. Successive chapters discover homes of the S-matrix — resembling renormalizability, gauge invariance, and unitarity — the renormalization crew, and interactive fields. extra issues contain electromagnetic couplings and the extension of the easy methods to non-abelian gauge theories. every one bankruptcy is supplemented with difficulties, and 4 appendixes finish the textual content.
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Additional info for Finite Quantum Electrodynamics: The Causal Approach, Third Edition (Dover Books on Physics)
Finite Quantum Electrodynamics: The Causal Approach, Third Edition (Dover Books on Physics) by Gunter Scharf