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High Energy Physics - Theory
Title: Benchmarking regulator-sourced 2PI and average 1PI flow equations in zero dimensions
(Submitted on 27 Jul 2021 (v1), last revised 29 Oct 2021 (this version, v2))
Abstract: We elucidate the regulator-sourced 2PI and average 1PI approaches for deriving exact flow equations in the case of a zero dimensional quantum field theory, wherein the scale dependence of the usual renormalisation group evolution is replaced by a simple parametric dependence. We show that both approaches are self-consistent, while highlighting key differences in their behaviour and the structure of the would-be loop expansion.
Submission history
From: Peter Millington [view email][v1] Tue, 27 Jul 2021 16:14:45 GMT (98kb,D)
[v2] Fri, 29 Oct 2021 16:33:42 GMT (98kb,D)
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