<div class="csl-bib-body">
<div class="csl-entry">Krämer, M. N., Meixner, M., Fraboulet, K., Bonetti, P. M., Vilardi, D., Wentzell, N., Toschi, A., Schäfer, T., & Andergassen, S. (2024, September 24). <i>Towards nonperturbative nonlocal correlations in the 2d Hubbard Model with the fRG</i> [Poster Presentation]. 12th International Conference on the Exact Renormalization Group, Switzerland. http://hdl.handle.net/20.500.12708/202011</div>
</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/202011
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dc.description
The DMF2RG has been introduced to overcome the weak-coupling limitation of the fermionic functional renormalization group (fRG). This approach builds on the idea to exploit the dynamical mean-field theory (DMFT) as starting point for the fRG flow, thus capturing local nonperturbative correlations via DMFT together with perturbative nonlocal correlations generated during the flow. We show how nonlocal nonperturbative correlations can be also incorporated in the DMF2RG scheme by using cellular DMFT (CDMFT) for a 2×2 cluster instead of single-site DMFT as starting point of the flow. Both CDMFT and fRG implementations have been formulated within the single-boson exchange decomposition, which has already proven to be an insightful bosonization scheme. We illustrate the ability of this novel approach to efficiently capture nonlocal nonperturbative correlations in the 2d Hubbard model.
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dc.language.iso
en
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dc.subject
Renormalization group
en
dc.subject
Hubbard model
en
dc.subject
cluster approches
en
dc.title
Towards nonperturbative nonlocal correlations in the 2d Hubbard Model with the fRG
en
dc.type
Presentation
en
dc.type
Vortrag
de
dc.contributor.affiliation
Harvard University, United States of America (the)
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dc.contributor.affiliation
Max Planck Institute for Solid State Research, Germany
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dc.type.category
Poster Presentation
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tuw.researchinfrastructure
Vienna Scientific Cluster
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tuw.researchTopic.id
Q6
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tuw.researchTopic.name
Quantum Many-body Systems Physics
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tuw.researchTopic.value
100
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tuw.publication.orgunit
E194-06 - Forschungsbereich Machine Learning
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tuw.publication.orgunit
E138-02 - Forschungsbereich Correlations: Theory and Experiments
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tuw.author.orcid
0000-0003-4551-2272
-
tuw.author.orcid
0000-0002-7465-7043
-
tuw.author.orcid
0000-0003-1433-0505
-
tuw.author.orcid
0000-0001-5669-3377
-
tuw.author.orcid
0000-0002-3128-6350
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tuw.event.name
12th International Conference on the Exact Renormalization Group
en
tuw.event.startdate
22-09-2024
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tuw.event.enddate
27-09-2024
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tuw.event.online
On Site
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tuw.event.type
Event for scientific audience
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tuw.event.country
CH
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tuw.event.presenter
Krämer, Marcel Nico
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wb.sciencebranch
Physik, Astronomie
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wb.sciencebranch.oefos
1030
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wb.sciencebranch.value
100
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item.openairetype
conference poster not in proceedings
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item.cerifentitytype
Publications
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item.grantfulltext
none
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item.languageiso639-1
en
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item.openairecristype
http://purl.org/coar/resource_type/c_18co
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item.fulltext
no Fulltext
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crisitem.author.dept
E194-06 - Forschungsbereich Machine Learning
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crisitem.author.dept
TU Wien
-
crisitem.author.dept
E194-06 - Forschungsbereich Machine Learning
-
crisitem.author.dept
University of Cambridge, United Kingdom of Great Britain and Northern Ireland (the)
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crisitem.author.dept
E138 - Institut für Festkörperphysik
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crisitem.author.dept
E138 - Institut für Festkörperphysik
-
crisitem.author.dept
E138 - Institut für Festkörperphysik
-
crisitem.author.dept
E194-06 - Forschungsbereich Machine Learning
-
crisitem.author.orcid
0000-0002-7465-7043
-
crisitem.author.orcid
0000-0003-1433-0505
-
crisitem.author.orcid
0000-0001-5669-3377
-
crisitem.author.orcid
0000-0002-3128-6350
-
crisitem.author.parentorg
E194 - Institut für Information Systems Engineering
-
crisitem.author.parentorg
E194 - Institut für Information Systems Engineering
-
crisitem.author.parentorg
E130 - Fakultät für Physik
-
crisitem.author.parentorg
E130 - Fakultät für Physik
-
crisitem.author.parentorg
E130 - Fakultät für Physik
-
crisitem.author.parentorg
E194 - Institut für Information Systems Engineering
