Derivative expansions of Euclidean thermal effective actions

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.

arXiv commentRevTeX, 4 pages, no figures

References in corpus (1)

• Derivative expansions of real-time thermal effective actions

Cited by in corpus (2)

• Feynman parametrization and Mellin summation at finite temperature
• The Unique Derivative Expansion for Thermal Effective Actions