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Titolo:
Perturbative quantum field theory in the string-inspired formalism
Autore:
Schubert, C;
Indirizzi:
Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France Lab Annecy Le Vieux Phys Particules Annecy Le Vieux France F-74941 rance Univ Michoacana, Inst Fis & Matemat, Morelia 58040, Michoacan, Mexico UnivMichoacana Morelia Michoacan Mexico 58040 a 58040, Michoacan, Mexico Calif Inst Phys & Astrophys, Palo Alto, CA USA Calif Inst Phys & Astrophys Palo Alto CA USA strophys, Palo Alto, CA USA
Titolo Testata:
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS
fascicolo: 2-3, volume: 355, anno: 2001,
pagine: 73 - 234
SICI:
0370-1573(200112)355:2-3<73:PQFTIT>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONLINEAR SIGMA-MODELS; WORLD-LINE FORMALISM; MECHANICAL PATH-INTEGRALS; STRONG MAGNETIC-FIELD; ONE-LOOP AMPLITUDES; YANG-MILLS THEORY; RELATIVISTIC PARTICLE PROPAGATORS; CONSTANT ELECTROMAGNETIC-FIELDS; VACUUM POLARIZATION TENSORS; HIGHER-DERIVATIVE EXPANSION;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
283
Recensione:
Indirizzi per estratti:
Indirizzo: Schubert, C Lab Annecy Le Vieux Phys Particules, Chemin Bellevue,BP 110, F-74941 Annecy Le Vieux, France Lab Annecy Le Vieux Phys Particules Chemin Bellevue,BP 110 Annecy Le Vieux France F-74941
Citazione:
C. Schubert, "Perturbative quantum field theory in the string-inspired formalism", PHYS REPORT, 355(2-3), 2001, pp. 73-234

Abstract

We review the status and present range of applications of the "string-inspired" approach to perturbative quantum field theory. This formalism offers the possibility of computing effective actions and S-matrix elements in a way which is similar in spirit to string perturbation theory, and bypasses much of the apparatus of standard second-quantized field theory. Its development was initiated by Bern and Kosower, originally with the aim of simplifying the calculation of scattering amplitudes in quantum chromodynamics and quantum gravity. We give a short account of the original derivation of the Bern-Kosower rules from string theory. Strassler's alternative approach in terms of first-quantized particle path integrals is then used to generalizethe formalism to more general field theories, and, in the abelian case, also to higher loop orders. A considerable number of sample calculations are presented in detail, with an emphasis on quantum electrodynamics. (C) 2001 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 10:08:33