{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:3UHNVGCBJGW6OC32CGWKRSSEWS","short_pith_number":"pith:3UHNVGCB","schema_version":"1.0","canonical_sha256":"dd0eda984149ade70b7a11aca8ca44b49aa584d71368dc054dc4be54dd7b542c","source":{"kind":"arxiv","id":"1808.03393","version":2},"attestation_state":"computed","paper":{"title":"Reheating and Entropy Perturbations in Fibre Inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Bao-Min Gu, Robert Brandenberger","submitted_at":"2018-08-10T02:25:13Z","abstract_excerpt":"We study reheating in some one and two field realizations of {\\it Fibre Inflation}. We find that reheating begins with a phase of preheating in which long wavelength fluctuation modes are excited. In two field models there is a danger that the parametric amplification of infrared fluctuations in the second scalar field - associated with an entropy mode - might induce an instability of the curvature fluctuations. We show that, at least in the models we consider, the entropy mode has a sufficiently large mass to prevent this instability. Hence, from the point of view of reheating the models we c"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1808.03393","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2018-08-10T02:25:13Z","cross_cats_sorted":["astro-ph.CO","gr-qc","hep-ph"],"title_canon_sha256":"88b08708f68ad8e397a48adcf4f7933081daef4fffd8f197fc744a6cdff940f5","abstract_canon_sha256":"68bf3e913ea44d33e68d8afaffa24723249b9dcc38491df4247829c968f4cfeb"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:06:37.085422Z","signature_b64":"SDfysbtSSTGd5G/W7NwanztXQwVWR0L185NPeIXOUQFyZv0v5VFGr/1dLx8SR/orV+oqERuDt5eNkXutbXmUAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dd0eda984149ade70b7a11aca8ca44b49aa584d71368dc054dc4be54dd7b542c","last_reissued_at":"2026-05-18T00:06:37.084988Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:06:37.084988Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Reheating and Entropy Perturbations in Fibre Inflation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","gr-qc","hep-ph"],"primary_cat":"hep-th","authors_text":"Bao-Min Gu, Robert Brandenberger","submitted_at":"2018-08-10T02:25:13Z","abstract_excerpt":"We study reheating in some one and two field realizations of {\\it Fibre Inflation}. We find that reheating begins with a phase of preheating in which long wavelength fluctuation modes are excited. In two field models there is a danger that the parametric amplification of infrared fluctuations in the second scalar field - associated with an entropy mode - might induce an instability of the curvature fluctuations. We show that, at least in the models we consider, the entropy mode has a sufficiently large mass to prevent this instability. Hence, from the point of view of reheating the models we c"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1808.03393","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1808.03393","created_at":"2026-05-18T00:06:37.085052+00:00"},{"alias_kind":"arxiv_version","alias_value":"1808.03393v2","created_at":"2026-05-18T00:06:37.085052+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1808.03393","created_at":"2026-05-18T00:06:37.085052+00:00"},{"alias_kind":"pith_short_12","alias_value":"3UHNVGCBJGW6","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_16","alias_value":"3UHNVGCBJGW6OC32","created_at":"2026-05-18T12:32:05.422762+00:00"},{"alias_kind":"pith_short_8","alias_value":"3UHNVGCB","created_at":"2026-05-18T12:32:05.422762+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2412.08723","citing_title":"Chiral global embedding of Fibre Inflation with $\\overline{\\rm D3}$ uplift","ref_index":51,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS","json":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS.json","graph_json":"https://pith.science/api/pith-number/3UHNVGCBJGW6OC32CGWKRSSEWS/graph.json","events_json":"https://pith.science/api/pith-number/3UHNVGCBJGW6OC32CGWKRSSEWS/events.json","paper":"https://pith.science/paper/3UHNVGCB"},"agent_actions":{"view_html":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS","download_json":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS.json","view_paper":"https://pith.science/paper/3UHNVGCB","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1808.03393&json=true","fetch_graph":"https://pith.science/api/pith-number/3UHNVGCBJGW6OC32CGWKRSSEWS/graph.json","fetch_events":"https://pith.science/api/pith-number/3UHNVGCBJGW6OC32CGWKRSSEWS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS/action/storage_attestation","attest_author":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS/action/author_attestation","sign_citation":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS/action/citation_signature","submit_replication":"https://pith.science/pith/3UHNVGCBJGW6OC32CGWKRSSEWS/action/replication_record"}},"created_at":"2026-05-18T00:06:37.085052+00:00","updated_at":"2026-05-18T00:06:37.085052+00:00"}