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arXiv · 2507.13011

Physics-informed operator flows and observables

Friederike Ihssen·Jan M. Pawlowski
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Abstract

We discuss physics-informed renormalisation group flows (PIRGs) for general operators. We show that operator PIRGs provide a comprehensive access to all correlation functions of the quantum field theory under investigation. The operator PIRGs can be seen as a completion of the PIRG-approach, whose qualitative computational simplification and structural insights are now fully accessible for general applications. The potential of this setup is assessed within a simple analytic example of the zero-dimensional $\phi^4$-theory for which the generating functions of the fundamental field are computed within a vertex expansion, using the one- to ten-point functions.

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Friederike Ihssen, Jan M. Pawlowski. 2025-07-17. Physics-informed operator flows and observables. https://doi.org/10.1103/zy96-jg9g

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