Functional renormalization group approach to neutron matter [PDF]
Physics Letters B, 2014 The chiral nucleon-meson model, previously applied to systems with equal number of neutrons and protons, is extended to asymmetric nuclear matter. Fluctuations are included in the framework of the functional renormalization group.
Matthias Drews, Wolfram Weise
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Spectral Functions from the Functional Renormalization Group [PDF]
Nuclear Physics A, 2017 We present results for in-medium spectral functions obtained within the Functional Renormalization Group framework. The analytic continuation from imaginary to real time is performed in a well-defined way on the level of the flow equations. Based on this
J. Wambach +4 more
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Deep Learning the Functional Renormalization Group. [PDF]
Physical Review Letters, 2022 We perform a data-driven dimensionality reduction of the scale-dependent four-point vertex function characterizing the functional renormalization group (FRG) flow for the widely studied two-dimensional t-t^{'} Hubbard model on the square lattice.
D. D. Sante +6 more
semanticscholar +6 more sources
Quantitative functional renormalization group description of the two-dimensional Hubbard model [PDF]
Physical Review Research, 2020 Using a leading algorithmic implementation of the functional renormalization group (fRG) for interacting fermions on two-dimensional lattices, we provide a detailed analysis of its quantitative reliability for the Hubbard model.
Cornelia Hille +7 more
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Functional renormalization group for Luttinger liquids with impurities [PDF]
, 2004 We improve the recently developed functional renormalization group (fRG) for impurities and boundaries in Luttinger liquids by including renormalization of the two-particle interaction, in addition to renormalization of the impurity potential.
Sabine Andergassen +5 more
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Better integrators for functional renormalization group calculations [PDF]
The European Physical Journal B, 2022 We analyze a variety of integration schemes for the momentum space functional renormalization group calculation with the goal of finding an optimized scheme.
Jacob Beyer, F. Goth, T. Müller
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Renormalization Group Functional Equations
Physical Review D, 2010 Functional conjugation methods are used to analyze the global structure of various renormalization group trajectories, and to gain insight into the interplay between continuous and discrete rescaling.
A. B. Zamolodchikov +11 more
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Single-boson exchange representation of the functional renormalization group for strongly interacting many-electron systems [PDF]
Physical Review Research, 2022 We present a reformulation of the functional renormalization group (fRG) for many-electron systems, which relies on the recently introduced single-boson exchange (SBE) representation of the parquet equations [F. Krien, A. Valli, and M. Capone, Phys. Rev.
Pietro M. Bonetti +4 more
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Functional renormalization group study of the Kitaev-
Physical review B, 2021 The theoretical inception of the Kitaev honeycomb model has had defining influence on the experimental hunt for quantum spin liquids, bringing unprecedented focus onto the synthesis of materials with bond-directional interactions.
Finn Lasse Buessen, Yong Baek Kim
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Functional renormalization group flow of massive gravity [PDF]
European Physical Journal C: Particles and Fields, 2020 We apply the functional renormalization group equation to a massive Fierz–Pauli action in curved space and find that, even though a massive term is a modification in the infrared sector, the mass term modifies the value of the non-gaussian fixed point in
Maximiliano Binder, Iván Schmidt
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