Heat Kernel Approach in Quantum Field Theory

Details Heat Kernel Approach in Quantum Field Theory Heat Kernel Approach in Quantum Field Theory

2001-07-19

arxiv.org/abs/math-ph/0107018v1

Nucl.Phys.Proc.Suppl. 104 (2002) 3-32

Physics

Mathematical Physics

Lectures at the Conference "Quantum Gravity and Spectral Geometry", Jul2-2-7, 2001, Naples, Italy

Scientific paper

10.1016/S0920-5632(01)01593-6

We give a short overview of the effective action approach in quantum field theory and quantum gravity and describe various methods for calculation of the asymptotic expansion of the heat kernel for second-order elliptic partial differential operators acting on sections of vector bundles over a compact Riemannian manifold. We consider both Laplace type operators and non-Laplace type operators on manifolds without boundary as well as Laplace type operators on manifolds with boundary with oblique and non-smooth boundary conditions.

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