Reanalysis of critical exponents for the O(N) model via a hydrodynamic approach to the functional renormalization group
- We reanalyze some critical exponents of the 𝑂(𝑁) model within the functional renormalization group (FRG) approach in the local potential approximation (LPA). We use recent advances which are based on the observation that the FRG flow equation in LPA can be put into the form of an advection-diffusion equation. This allows to employ well-tested hydrodynamical algorithms for its solution to better estimate various sources of errors. Our results complement previous results for the critical exponents obtained within the FRG approach in LPA and compare favorably with those obtained via other methods.
Author: | Fabrizio MurganaORCiDGND, Adrian KoenigsteinORCiDGND, Dirk H. RischkeORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-864338 |
DOI: | https://doi.org/10.1103/PhysRevD.108.116016 |
ISSN: | 2470-0029 |
ISSN: | 2470-0010 |
ArXiv Id: | http://arxiv.org/abs/2303.16838 |
Parent Title (English): | Physical review. D : covering particles, fields, gravitation, and cosmology |
Publisher: | American Physical Society |
Place of publication: | Ridge, NY |
Document Type: | Article |
Language: | English |
Date of Publication (online): | 2023/12/18 |
Date of first Publication: | 2023/12/18 |
Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Release Date: | 2024/07/25 |
Volume: | 108 |
Issue: | 11.116016 |
Article Number: | 116016 |
Page Number: | 15 |
Institutes: | Physik / Physik |
Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Licence (German): | ![]() |