98 citations · 616 across the 25 of their papers we have counts for
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Time evolution of density matrices as a theory of random surfaces
Carlo Pagani, Martin Reuter
In the operatorial formulation of quantum statistics, the time evolution of density matrices is governed by von Neumann's equation. Within the phase space formulation of quantum me…
Operator product expansion coefficients from the nonperturbative functional renormalization group
Félix Rose, Carlo Pagani, Nicolas Dupuis
Using the nonperturbative functional renormalization group (FRG) within the Blaizot-Méndez-Galain-Wschebor approximation, we compute the operator product expansion (OPE) coefficien…
Operator product expansion coefficients in the exact renormalization group formalism
C. Pagani, H. Sonoda
We study how to compute the operator product expansion coefficients in the exact renormalization group formalism. After discussing possible strategies, we consider some examples ex…
On the geometry of the theory space in the ERG formalism
C. Pagani, H. Sonoda
We consider the theory space as a manifold whose coordinates are given by the couplings appearing in the Wilson action. We discuss how to introduce connections on this theory space…
Products of composite operators in the exact renormalization group formalism
C. Pagani, H. Sonoda
We discuss a general method of constructing the products of composite operators using the exact renormalization group formalism. Considering mainly the Wilson action at a generic f…
A note on scaling arguments in the effective average action formalism
Carlo Pagani
The effective average action (EAA) is a scale dependent effective action where a scale is introduced via an infrared regulator. The dependence of the EAA is governed by an…