Generalized heat kernel coefficients

Details Generalized heat kernel coefficients Generalized heat kernel coefficients

2001-07-16

arxiv.org/abs/hep-th/0107133v2

Eur.Phys.J.direct C3 (2001) 14

Physics

High Energy Physics

High Energy Physics - Theory

6 pages, REVTEX, no figures. Minor corrections

Scientific paper

Following Osipov and Hiller, a generalized heat kernel expansion is considered for the effective action of bosonic operators. In this generalization, the standard heat kernel expansion, which counts inverse powers of a c-number mass parameter, is extended by allowing the mass to be a matrix in flavor space. We show that the generalized heat kernel coefficients can be related to the standard ones in a simple way. This holds with or without trace and integration over spacetime, to all orders and for general flavor spaces. Gauge invariance is manifest.

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