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Derivative expansions of Euclidean thermal effective actions

T. S. Evans
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Abstract

I compute the derivative expansion of an effective action at finite temperature using the imaginary time approach. I show that it is a well behaved expansion giving a unique seriers contrary to previous results. This disparity is shown to originate in the choice of thermal Green functions used in the calculations.

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T. S. Evans. 1998-08-21. Derivative expansions of Euclidean thermal effective actions. https://arxiv.org/abs/hep-ph/9808382

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