31 citations · 94 across the 7 of their papers we have counts for
Showing cond-mat.stat-mechShow all
3 papers · 1 filter
cond-mat.stat-mech2021★ 29 cited
Numerical fluid dynamics for FRG flow equations: Zero-dimensional QFTs as numerical test cases. II. Entropy production and irreversibility of RG flows
Adrian Koenigstein, Martin J. Steil, Nicolas Wink +2
We demonstrate that the reformulation of renormalization group (RG) flow equations as non-linear heat equations has severe implications on the understanding of RG flows in general.…
cond-mat.stat-mech2021★ 22 cited
Numerical fluid dynamics for FRG flow equations: Zero-dimensional QFTs as numerical test cases. III. Shock and rarefaction waves in RG flows reveal limitations of the limit in -type models
Martin J. Steil, Adrian Koenigstein
Using an -symmetric toy model QFT in zero space-time dimensions we discuss several aspects and limitations of the -expansion. We demonstrate, how slight modifica…
cond-mat.stat-mech2021★ 31 cited
Numerical fluid dynamics for FRG flow equations: Zero-dimensional QFTs as numerical test cases. I. The model
Adrian Koenigstein, Martin J. Steil, Nicolas Wink +4
The functional renormalization group (FRG) approach is a powerful tool for studies of a large variety of systems, ranging from statistical physics over the theory of the strong int…