Update references for split-CTMRG preprint

Author: JanLuca

.zenodo.json

@@ -54,6 +54,11 @@
             "relation": "isDocumentedBy",
             "resource_type": "publication-article"
         },
+        {
+            "identifier": "arXiv:2502.10298",
+            "relation": "isDocumentedBy",
+            "resource_type": "publication-preprint"
+        },
         {
             "identifier": "https://varipeps.readthedocs.io/en/stable/",
             "relation": "isDocumentedBy",

CITATION.cff

@@ -28,6 +28,9 @@ identifiers:
   - type: doi
     value: 10.21468/SciPostPhysLectNotes.86
     description: Journal article with the description of the method
+  - type: doi
+    value: 10.48550/arXiv.2502.10298
+    description: Prepribt with the description of the split-CTMRG method
   - type: doi
     value: 10.5281/zenodo.10852390
     description: Zenodo DOI for current version of the code

README.md

@@ -41,6 +41,16 @@ The BibTeX code for these references are:
 	url={https://scipost.org/10.21468/SciPostPhysLectNotes.86},
 }
 
+@misc{naumann2025variationallyoptimizinginfiniteprojected,
+      title={Variationally optimizing infinite projected entangled-pair states at large bond dimensions: A split-CTMRG approach},
+      author={Jan Naumann and Erik Lennart Weerda and Jens Eisert and Matteo Rizzi and Philipp Schmoll},
+      year={2025},
+      eprint={2502.10298},
+      archivePrefix={arXiv},
+      primaryClass={cond-mat.str-el},
+      url={https://arxiv.org/abs/2502.10298},
+}
+
 @software{naumann24_varipeps_python,
     author =        {Jan Naumann and Philipp Schmoll and Frederik Wilde and Finn Krein},
     title =         {{variPEPS (Python version)}},