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Understanding the Fierz Ambiguity of Partially Bosonized Theories by Jaeckel, Joerg is a scholarly article available to read on EtoBox.

What is Understanding the Fierz Ambiguity of Partially Bosonized Theories about?

A useful tool in non perturbative studies of fermionic theories is partial bosonization. However, partial bosonization is often connected to an ambiguity due to Fierz rearrangement in the original theory. We discuss two different approximations for the calculation of the effective action $\Gamma$ with respect to a spurious dependence on the choice of Fierz transformation: Mean field theory and the truncated flow of an exact renormalization group equation for the effective average action.

Author

Jaeckel, Joerg

Published

2002

Language

EN