Summing the derivative expansion of the effective action

Details Summing the derivative expansion of the effective action Summing the derivative expansion of the effective action

2001-09-06

arxiv.org/abs/hep-th/0109046v3

Nucl.Phys. B620 (2002) 566-578

Physics

High Energy Physics

High Energy Physics - Theory

14 pages, no figures. Latex-file. Reference added

Scientific paper

10.1016/S0550-3213(01)00537-5

The derivative expansion of the effective action is a perturbative
development in derivatives of the fields. The expansion breaks down when some
of the derivatives are too large. We show how to sum exactly the first and
second derivatives and treat perturbatively derivatives higher than second.

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