Functional renormalization-group approach to decaying turbulence [PDF]
Journal of Statistical Mechanics: Theory and Experiment, 2013 39 pages, 25 ...
Andrei A. Fedorenko +2 more
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Fulfillment of sum rules and Ward identities in the multiloop functional renormalization group solution of the Anderson impurity model [PDF]
Physical Review Research, 2021 We investigate several fundamental characteristics of the multiloop functional renormalization group (mfRG) flow by hands of its application to a prototypical many-electron system: the Anderson impurity model (AIM).
Patrick Chalupa-Gantner +5 more
semanticscholar +1 more source
Physical properties of the massive Schwinger model from the nonperturbative functional renormalization group [PDF]
Physical Review D, 2021 We investigate the massive Schwinger model in $d=1+1$ dimensions using bosonization and the nonperturbative functional renormalization group. In agreement with previous studies we find that the phase transition, driven by a change of the ratio $m/e ...
Patrick Jentsch +3 more
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Exact renormalization group for wave functionals
Progress of Theoretical and Experimental Physics, 2023 AbstractMotivated by the construction of continuum tensor networks for interacting field theories, which are relevant in understanding the emergence of space-time in the gauge/gravity correspondence, we derive a non-perturbative functional differential equation for wave functionals in scalar field theories from the exact renormalization group equation.
Kuwahara, Takaaki +3 more
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Renormalization Group Transformation for the Wave Function [PDF]
Annals of Physics, 1998 The problem considered here is the determination of the hamiltonian of a first quantized nonrelativistic particle by the help of some measurements of the location with a finite resolution. The resulting hamiltonian depends on the resolution of the measuring device.
Hanae El Hattab +2 more
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Operator product expansion coefficients from the nonperturbative functional renormalization group [PDF]
Physical Review D, 2021 Using the nonperturbative functional renormalization group (FRG) within the Blaizot-M\'endez-Galain-Wschebor approximation, we compute the operator product expansion (OPE) coefficient $c_{112}$ associated with the operators $\mathcal{O}_1\sim\varphi$ and
F. Rose, C. Pagani, N. Dupuis
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Renormalization scheme dependence and the renormalization group beta function [PDF]
Physical Review D, 2017 16 pages, 1 figure, minor typos fixed and additional comments made; accepted at Physical Review ...
D. G. C. McKeon +3 more
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Bound states in functional renormalization group [PDF]
International Journal of Modern Physics A, 2019 Equivalence criteria are established for an effective Yukawa-type theory of composite fields representing two-particle fermion bound states with the original “microscopic” theory of interacting fermions based on the spectral decomposition of the 2-to-2 fermion scattering amplitude. Functional renormalization group equations of the effective theory are
Antal Jakovác, András Patkós
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Limit of vanishing regulator in the functional renormalization group [PDF]
Physical Review D, 2021 The non-perturbative functional renormalization group equation depends on the choice of a regulator function, whose main properties are a "coarse-graining scale" $k$ and an overall dimensionless amplitude $a$. In this paper we shall discuss the limit $a\to0$ with $k$ fixed.
Baldazzi, Alessio +2 more
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Exact flow equation for the divergence functional
Physics Letters B, 2023 An exact functional renormalization group flow equation is derived for the divergence functional which is a generalization of the Kullback-Leibler divergence to quantum field theories in the Euclidean domain.
Stefan Floerchinger
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