Renormalized functional renormalization group [PDF]
Physics Letters B, 2018 We construct a new version of the effective average action together with its flow equation. The construction entails in particular the consistency of fluctuation field and background field equations of motion, even for finite renormalization group scales.
Stefan Lippoldt
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Lectures on the functional renormalization group method [PDF]
Open Physics, 2003 These introductory notes are about functional renormalization group equations and some of their applications. It is emphasised that the applicability of this method extends well beyond critical systems, it actually provides us a general purpose algorithm
Polonyi Janos
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Functional renormalization group approach to the four-body problem [PDF]
EPJ Web of Conferences, 2010 We present a renormalization group analysis of the non-relativistic four-boson problem by means of a simple model with pointlike three- and four-body interactions. We investigate in particular the unitarity point where the scattering length is infinite
Moroz S., Schmidt R.
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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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Efimov Physics from the Functional Renormalization Group [PDF]
, 2011 Few-body physics related to the Efimov effect is discussed using the functional renormalization group method. After a short review of renormalization in its modern formulation we apply this formalism to the description of scattering and bound states in ...
Stefan Floerchinger +2 more
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Bosonization and functional renormalization group approach in the framework of
, 2011 Known results on two-dimensional quantum electrodynamics (QED_2) have been used to study the dependence of functional renormalization group equations on renormalization schemes and approximations applied for its bosonized version. It is demonstrated that
I. Nándori
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Functional renormalization group study of the Anderson–Holstein model
New Journal of Physics, 2014 We present a comprehensive study of the spectral and transport properties in the Anderson–Holstein model both in and out of equilibrium using the functional renormalization group (fRG).
M A Laakso +3 more
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High-performance functional Renormalization Group calculations for interacting fermions [PDF]
, 2016 We derive a novel computational scheme for functional Renormalization Group (fRG) calculations for interacting fermions on 2D lattices. The scheme is based on the exchange parametrization fRG for the two-fermion interaction, with additional insertions of
Julian Lichtenstein +5 more
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Functional renormalization group approach to the singlet–triplet transition in quantum dots [PDF]
, 2012 We present a functional renormalization group approach to the zero bias transport properties of a quantum dot with two different orbitals and in presence of Hund's coupling.
E. B. Magnusson +2 more
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Truncated-Unity Functional Renormalization Group for Multiband Systems With Spin-Orbit Coupling
Frontiers in Physics, 2018 Although the functional renormalization group (fRG) is by now a well-established method for investigating correlated electron systems, it is still undergoing significant technical and conceptual improvements.
Giulio A. H. Schober +5 more
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