{"paper":{"title":"Trapping effects in inflation: blue spectrum at small scales","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"astro-ph.CO","authors_text":"Edgar Bugaev, Peter Klimai","submitted_at":"2015-11-19T14:12:23Z","abstract_excerpt":"We consider the inflationary model in which the inflaton $\\phi$ couples to another scalar field $\\chi$ via the interaction $g^2(\\phi-\\phi_0)^2\\chi^2$ with a small coupling constant $g$ ($g^2 \\sim 10^{-7}$). We assume that there is a sequence of \"trapping points\" $\\phi_{0i}$ along the inflationary trajectory where particles of $\\chi$-field become massless and are rather effectively produced. We calculate the power spectrum of inflaton field fluctuations originated from a backreaction of $\\chi$-particles produced, using the Schwinger's \"in-in\" formalism. We show that the primary curvature power "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1511.06175","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"}