{"paper":{"title":"Inflation with Gauss-Bonnet coupling","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"gr-qc","authors_text":"Mudassar Sabir, Yungui Gong, Zhu Yi","submitted_at":"2018-04-24T16:10:30Z","abstract_excerpt":"We consider inflationary models with the inflaton coupled to the Gauss-Bonnet term assuming a special relation $\\delta_1=2\\lambda\\epsilon_1$ between the two slow-roll parameters $\\delta_1$ and $\\epsilon_1$. For the slow-roll inflation, the assumed relation leads to the reciprocal relation between the Gauss-Bonnet coupling function $\\xi(\\phi)$ and the potential $V(\\phi)$, and it leads to the relation $r=16(1-\\lambda)\\epsilon_1$ that reduces the tensor-to-scalar ratio $r$ by a factor of $1-\\lambda$. For the constant-roll inflation, we derive the analytical expressions for the scalar and tensor p"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.09116","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":""},"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"}