QED: A Proof of Renormalizability (Lecture Notes in Physics 312)

Feldman, Joel S., Hurd, Thomas R., Rosen, Lon, Wright, Jill D.

ISBN 10: 3540502130 / ISBN 13: 9783540502135

Editore: Springer, 1988

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Codice articolo ZB1319876

Dati bibliografici

• Titolo: QED: A Proof of Renormalizability (Lecture Notes in Physics 312)
• Editore: Springer
• Data di pubblicazione: 1988
• Lingua: Inglese
• ISBN 10: 3540502130
• ISBN 13: 9783540502135
• Rilegatura: Rilegato
• Condizione: Very Good

Descrizione articolo

Riassunto

The authors give a detailed and pedagogically well written proof of the renormalizability of quantum electrodynamics in four dimensions. The proof is based on the free expansion of Gallavotti and Nicolo and is mathematically rigorous as well as impressively general. It applies to rather general models of quantum field theory including models with infrared or ultraviolet singularities, as shown in this monograph for the first time. Also discussed are the loop regularization for renormalized graphs and the Ward identities. The authors also establish that in QED in four dimensions only gauge invariant counterterms are required. This seems to be the first proof which will be accessible not only to the expert but also to the student.

Contenuti

The GN tree expansion and UV-renormalization.- Loop regularization.- Ward identities.- The limits ? ? ? and U ? ?.- The tree expansion in the infrared regime.- QED without cutoffs.- Local borel summability.