Numerical fluid dynamics for FRG flow equations: Zero-dimensional QFTs as numerical test cases. I. The model
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 interaction to …
variety of systems, ranging from statistical physics over the theory of the strong interaction to …
Non-perturbative aspects of (low-dimensional) quantum field theories
A Koenigstein - 2023 - publikationen.ub.uni-frankfurt.de
This thesis deals with several aspects of non-perturbative calculations in low-dimensional
quantum field theories. It is split into two main parts: The first part focuses on method …
quantum field theories. It is split into two main parts: The first part focuses on method …
Addressing energy density functionals in the language of path-integrals I: comparative study of diagrammatic techniques applied to the (0 + 0)-D O(N)-symmetric …
K Fraboulet, JP Ebran - The European Physical Journal A, 2023 - Springer
The energy density functional (EDF) method is currently the only microscopic theoretical
approach able to tackle the entire nuclear chart. Nevertheless, it suffers from limitations …
approach able to tackle the entire nuclear chart. Nevertheless, it suffers from limitations …
Addressing energy density functionals in the language of path-integrals II: comparative study of functional renormalization group techniques applied to the (0+0)-D O(N) …
K Fraboulet, JP Ebran - The European Physical Journal A, 2024 - Springer
The present paper is the second of a series of publications that aim at investigating relevant
directions to turn the nuclear energy density functional (EDF) method as an effective field …
directions to turn the nuclear energy density functional (EDF) method as an effective field …
Functional Renormalization Group meets Computational Fluid Dynamics: RG flows in a multi-dimensional field space
N Zorbach, A Koenigstein, J Braun - arXiv preprint arXiv:2412.16053, 2024 - arxiv.org
Within the Functional Renormalisation Group (FRG) approach, we present a fluid-dynamical
approach to solving flow equations for models living in a multi-dimensional field space. To …
approach to solving flow equations for models living in a multi-dimensional field space. To …
[HTML][HTML] From zero-dimensional theories to inhomogeneous phases with the functional renormalization group
MJ Steil - 2022 - tuprints.ulb.tu-darmstadt.de
In this work, we study strongly interacting quantum field theories using the functional
renormalization group (FRG) as our primary computational method. The goal is to facilitate …
renormalization group (FRG) as our primary computational method. The goal is to facilitate …
Solution to Infinity Problem of Scattering Matrix Using Time-Evolution Operators Without Needing Renormalization
C Jong - International Conference on Mathematical Modeling in …, 2023 - Springer
The current situation of research challenging the demanding tasks of renormalization
implies that the present framework of quantum scattering theory does not offer good …
implies that the present framework of quantum scattering theory does not offer good …
Kondo Collapse and Revival by Pulsed Light
F Costa Meirinhos - 2024 - bonndoc.ulb.uni-bonn.de
The search and characterisation of new quantum phases of matter has recently been
intensified by the application of terahertz (THz) spectroscopy in the time domain to heavy …
intensified by the application of terahertz (THz) spectroscopy in the time domain to heavy …