Data · dataset · 2025
Two-site entanglement in the two-dimensional Hubbard model
Listed in TU Wien Research Data
With this data set, we aim to make all data published in [1] Bippus. et. al Two-site entanglement in the two-dimensional Hubbard model (2025) arXiv:2506.09780 publicly available.
Description
In this study, the entanglement properties of the 2D Hubbard model in the weak coupling regime are investigated. We include three data sets: Density Matrices The Density_Matrices.zip includes all density matrices which were obtained with the parquet approximation (pa) and dynamical vertex approximation (dga) as described in [1].
From them all entanglement measures shown in [1] can be computed. The data is structured as follows: Density matrices for each set of Hubbard model parameters U,n,mu,beta is provided in a separate directory i.e.: wgamma_u2.0_n1.00000_mu1.00000_beta5.000000_pa_grain1 with _pa , _dga signalling the approximation that has been used and _grain1 is added for data that does not use coarse graining. Each directory includes rho_(dx,dy).csv files containing the 16x16 two-site reduced density matrices of two lattice sites separated by distance (dx,dy) in the basis specified in [1].
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QMC The QMC.zip data set includes all quantum Monte Carlos benchmark data used in [1]. All data were obtained with the Algorithms for Lattice Fermions (ALF) library [2]. A detailed description of the output files is provided in [2].
The data is structured as follows: Each set of considered Hubbard model parameters is provided in a separate directory i.e.: U4.0_n_1.0_beta5.0 with the Rényi Mutual information stored mutual_{}.dat files. For {} = 10, data is shown along the horizontal direction, for {} = 11 data is shown along the diagonal direction, {} = 2D or no addition includes data for all lattice sites in the irreducible wedge. U0 The U0.zip includes the semi-analytical results for the mutual information in the non-interacting Hubbard model and contains two .dat files of the mutual information at half filling and n=0.8.
[1] Bippus. et. al Two-site entanglement in the two-dimensional Hubbard model (2025) arXiv:2506.09780 [2] Assaad. et. al The ALF (Algorithms for Lattice Fermions) project release 2.4. Documentation for the auxiliary-field quantum Monte Carlo code (2025) 10.21468/SciPostPhysCodeb.1-v2.4
Links
Where it is published
- TU Wien Research Data record researchdata.tuwien.ac.at/records/7pft0-nn697 ↗
landing page · from researchdata tuwien ac at
- DOI doi.org/10.48436/7pft0-nn697 ↗
DOI / persistent id · from researchdata tuwien ac at
Catalogue records · 1
- InvenioRDM API researchdata.tuwien.ac.at/api/records/7pft0-nn697 ↗
metadata API · from researchdata tuwien ac at
Topics
- Stated by source
- Physical sciences
- From keywords
- Physics
- Inferred from text
- Condensed matter physics 73%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| TU Wien Research Data | 7pft0-nn697 | 13 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 | |
| concepts[field].anzsrc:group:5104 | enrichment · researchdata tuwien ac at | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[field].local:field:physics | mapping · researchdata tuwien ac at | vocabulary-mapper@1.0.0 | keywords['Physical sciences'] |
| concepts[topic].invenio_subject:researchdata_tuwien_ac_at:physical-sciences | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 | |
| description | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 | /metadata/description |
| license | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 | |
| publication_date | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 | |
| title | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 | /metadata/title |
| updated_date | source · researchdata tuwien ac at | connector:researchdata_tuwien_ac_at@1.0.0 |