{"paper":{"title":"Equivalence of matter-type modified gravity theories to general relativity with nonminimal matter interaction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Elham Nazari, Mahmood Roshan, Mariam Bouhmadi-L\\'opez, Nihan Kat{\\i}rc{\\i}, N. Merve Uzun, \\\"Ozg\\\"ur Akarsu","submitted_at":"2023-06-20T17:52:32Z","abstract_excerpt":"In this study, we first establish that gravity models incorporating matter-related terms, such as $f(\\mathcal{L}_{\\rm m})$, $f(g_{\\mu\\nu} T^{\\mu\\nu})$, and $f(T_{\\mu\\nu} T^{\\mu\\nu})$, into the usual matter Lagrangian density $\\mathcal{L}_{\\rm m}$, are equivalent to general relativity with nonminimal matter interactions. Through the redefinition $\\mathcal{L}_{\\rm m}+f \\rightarrow \\mathcal{L}_{\\rm m}^{\\rm tot}$, these models are exactly GR, yet the usual material field $T_{\\mu\\nu}$ and its accompanying partner, the modification field $T_{\\mu\\nu}^{\\rm mod}$, engage in nonminimal interactions. Spe"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2306.11717","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2306.11717/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}