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2007-06-29 - Article/Dans un journal avec peer-review - Anglais - 4 page(s)

Boulanger Nicolas , "Algebraic classification of Weyl anomalies in arbitrary dimensions" in Physical Review Letters, Phys.Rev.Lett. 98 (2007) 261302

  • Edition : American Physical Society, Ridge (NY)
  • Codes CREF : Algèbre commutative et algèbre homologique (DI1148), Gravitation (DI1216), Théorie quantique des champs (DI1215)
  • Unités de recherche UMONS : Mécanique et gravitation (S884)
  • Centres UMONS : Algèbre, Géométrie et Interactions fondamentales (AGIF)
Texte intégral :

Abstract(s) :

(Anglais) Conformally invariant systems involving only dimensionless parameters are known to describe particle physics at very high energy. In the presence of an external gravitational field, the conformal symmetry may generalize to the Weyl invariance of classical massless field systems in interaction with gravity. In the quantum theory, the latter symmetry no longer survives: A Weyl anomaly appears. Anomalies are a cornerstone of quantum field theory, and, for the first time, a general, purely algebraic understanding of the universal structure of the Weyl anomalies is obtained, in arbitrary dimensions and independently of any regularization scheme.

Identifiants :
  • arXiv : 0706.0340
  • DOI : 10.1103/PhysRevLett.98.261302