Nonlocal low-energy effective action for gravity with torsion

Details Nonlocal low-energy effective action for gravity with torsion Nonlocal low-energy effective action for gravity with torsion

1997-12-21

arxiv.org/abs/hep-th/9712198v2

Class.Quant.Grav.16:4057-4074,1999

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, revtex. Comments and corrections added. Final version to appear in Class. Quantum. Grav

Scientific paper

10.1088/0264-9381/16/12/321

In this work we calculate the low-energy effective action for gravity with torsion, obtained after the integration of scalar and fermionic matter fields, using the local momentum representation based on the Riemann normal coordinates expansion. By considering this expansion around different space-time points, we also compute the nonlocal terms together with the more usual divergent ones. Finally we discuss the applicability of our results to the calculation of particle production probabilities.

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