Effective action in a quantized metric

Details Effective action in a quantized metric Effective action in a quantized metric

2002-03-20

arxiv.org/abs/hep-th/0203180v1

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

We calculate the effective action in Yang-Mills and scalar \phi^4 quantum field theory with quantized scale invariant metric treated non-perturbatively in d=4 dimensions. There is no charge renormalization in the one-loop order for matter fields. We show that the electromagnetic energy of point charges can be finite. The temperature dependence of the effective action in inflationary models is changed substantially as a result of an interaction with quantum gravity.

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