Comment on ''A path integral leading to higher-order Lagrangians, arXiv:0708.4351 [hep-th]''

Details Comment on ''A path integral leading to higher-order Lagrangians, arXiv:0708.4351 [hep-th]'' Comment on ''A path integral leading to higher-order Lagrangians, arXiv:0708.4351 [hep-th]''

2007-12-03

arxiv.org/abs/0712.0365v1

Physics

High Energy Physics

High Energy Physics - Theory

Latex, 3 pages

Scientific paper

We show that the ``effective Lagrangian'' constructed in [1] is inconsistent
with the exact result for the complete Lagrangian presented in [2]. We trace
the origin of the inconsistence to the peculiar way in which the path integral
methods are used to eliminate variables that are not auxialiry.

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