Results 31 to 40 of about 55,124 (278)
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 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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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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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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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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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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Prescription dependence of renormalization-group functions [PDF]
Physical Review D, 1982 The dependence on the renormalization scheme of the important QCD renormalization-group parameters β , γ , and δ is discussed. We compute the second coefficient for all three parameters for several renormalization schemes which include all the standard ones.
Espriu, D. (Domènec) +1 more
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Multiloop functional renormalization group approach to quantum spin systems
Physical Review Research, 2022 Renormalization group methods are well-established tools for the (numerical) investigation of the low-energy properties of correlated quantum many-body systems, allowing us to capture their scale-dependent nature.
Dominik Kiese +4 more
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Multiloop functional renormalization group for general models [PDF]
, 2018 We present multiloop flow equations in the functional renormalization group (fRG) framework for the four-point vertex and self-energy, formulated for a general fermionic many-body problem. This generalizes the previously introduced vertex flow [F.
Kugler, Fabian B., von Delft, Jan
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The nonperturbative functional renormalization group and its applications [PDF]
Physics Reports, 2021 v3) Review article, 93 pages + bibliography, 35 ...
W. Metzner +7 more
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