Exploring the θ-vacuum structure in the functional renormalization group approach
Journal of High Energy Physics, 2022 We investigate the θ-vacuum structure and the ’t Hooft anomaly at θ = π in a simple quantum mechanical system on S 1 to scrutinize the applicability of the functional renormalization group (fRG) approach.
Kenji Fukushima +2 more
doaj +1 more source
Functional renormalization group and Kohn–Sham scheme in density functional theory
Physics Letters B, 2018 Deriving accurate energy density functional is one of the central problems in condensed matter physics, nuclear physics, and quantum chemistry. We propose a novel method to deduce the energy density functional by combining the idea of the functional ...
Haozhao Liang, Yifei Niu, Tetsuo Hatsuda
doaj +1 more source
Renormalization group flows for track function moments
Journal of High Energy Physics, 2022 Abstract Track functions describe the collective effect of the fragmentation of quarks and gluons into charged hadrons, making them a key ingredient for jet substructure measurements at hadron colliders, where track-based measurements offer superior angular resolution.
Max Jaarsma +4 more
openaire +6 more sources
Isotropic Lifshitz critical behavior from the functional renormalization group
Nuclear Physics B, 2015 The Lifshitz critical behavior for a single component field theory is studied for the specific isotropic case in the framework of the Functional Renormalization Group.
A. Bonanno, D. Zappalà
doaj +1 more source
Nested Selves: Self‐Organization and Shared Markov Blankets in Prenatal Development in Humans
Topics in Cognitive Science, EarlyView., 2023 Abstract The immune system is a central component of organismic function in humans. This paper addresses self‐organization of biological systems in relation to—and nested within—other biological systems in pregnancy. Pregnancy constitutes a fundamental state for human embodiment and a key step in the evolution and conservation of our species. While not
Anna Ciaunica +3 more
wiley +1 more source
Functional renormalization group approach to the four-body problem
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.
doaj +1 more source
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.
El Hattab, Hanae, Polonyi, Janos
openaire +3 more sources
Phase transitions in TGFT: functional renormalization group in the cyclic-melonic potential approximation and equivalence to O(N) models [PDF]
Journal of High Energy Physics, 2020 In the group field theory approach to quantum gravity, continuous spacetime geometry is expected to emerge via phase transition. However, understanding the phase diagram and finding fixed points under the renormalization group flow remains a major ...
A. G. A. Pithis, Johannes Thurigen
semanticscholar +1 more source
Dynamical functional renormalization group computation of order parameters and critical temperatures in the two-dimensional Hubbard model [PDF]
Physical review B, 2020 We analyze the interplay of antiferromagnetism and pairing in the two dimensional Hubbard model with a moderate repulsive interaction. Coupled charge, magnetic and pairing fluctuations above the energy scale of spontaneous symmetry breaking are treated ...
Demetrio Vilardi, P. Bonetti, W. Metzner
semanticscholar +1 more source
Functional renormalization group approach to color superconducting phase transition
Journal of High Energy Physics, 2019 We investigate the order of the color superconducting phase transition using the functional renormalization group approach. We analyze the Ginzburg-Landau effective theory of color superconductivity and more generic scalar SU(N c) gauge theories by ...
Gergely Fejős, Naoki Yamamoto
doaj +1 more source