{"paper":{"title":"Cosmic acceleration in dust only Universe via energy-momentum powered gravity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"gr-qc","authors_text":"Nihan Katirci, Ozgur Akarsu, Suresh Kumar","submitted_at":"2017-09-07T17:39:09Z","abstract_excerpt":"We propose a modified theory of gravitation constructed by the addition of the term $f(T_{\\mu\\nu}T^{\\mu\\nu})$ to the Einstein-Hilbert action, and elaborate a particular case $f(T_{\\mu\\nu}T^{\\mu\\nu})=\\alpha(T_{\\mu\\nu}T^{\\mu\\nu})^{\\eta}$, where $\\alpha$ and $\\eta$ are real constants, dubbed as energy-momentum powered gravity (EMPG). We search for viable cosmologies arising from EMPG especially in the context of the late-time accelerated expansion of the Universe. We investigate the ranges of the EMPG parameters $(\\alpha,\\eta)$ on theoretical as well as observational grounds leading to the late-t"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1709.02367","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"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"}