{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:1997:CZSD6BTZH2DOHB72GFB3MROIFU","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"1572f76b6d1e8640c9d4225d852ba145172a40f939db83f439f3520e13119da0","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"1997-03-14T17:40:24Z","title_canon_sha256":"3ee48eb384b55002590a7074c95f30a2040fe3737dde867d4952377679f75016"},"schema_version":"1.0","source":{"id":"hep-ph/9703327","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"hep-ph/9703327","created_at":"2026-05-18T02:37:05Z"},{"alias_kind":"arxiv_version","alias_value":"hep-ph/9703327v1","created_at":"2026-05-18T02:37:05Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.hep-ph/9703327","created_at":"2026-05-18T02:37:05Z"},{"alias_kind":"pith_short_12","alias_value":"CZSD6BTZH2DO","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_16","alias_value":"CZSD6BTZH2DOHB72","created_at":"2026-05-18T12:25:48Z"},{"alias_kind":"pith_short_8","alias_value":"CZSD6BTZ","created_at":"2026-05-18T12:25:48Z"}],"graph_snapshots":[{"event_id":"sha256:8bd838bd8bf0c7fb96ae024a6c17ee21ee2c8fee9629c4afbf6ae5487c63fba0","target":"graph","created_at":"2026-05-18T02:37:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We study the non-linear dynamics of quantum fields in matter and radiation dominated universes, using the non-equilibrium field theory approach combined with the non-perturbative Hartree and the large N approximations. We examine the phenomenon of explosive particle production due to spinodal instabilities and parametric amplification in expanding universes with and without symmetry breaking. For a variety of initial conditions, we compute the evolution of the inflaton, its quantum fluctuations, and the equation of state. We find explosive growth of quantum fluctuations, although particle prod","authors_text":"A. Singh, D. Boyanovsky, D. Cormier, H. J. de Vega, M. Srednicki, R. Holman","cross_cats":["astro-ph"],"headline":"","license":"","primary_cat":"hep-ph","submitted_at":"1997-03-14T17:40:24Z","title":"Scalar Field Dynamics in Friedman Robertson Walker Spacetimes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/9703327","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:f2628060aa57239620479512b824716c95e0c88c99d006e4bd2fd10a29b65dba","target":"record","created_at":"2026-05-18T02:37:05Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"1572f76b6d1e8640c9d4225d852ba145172a40f939db83f439f3520e13119da0","cross_cats_sorted":["astro-ph"],"license":"","primary_cat":"hep-ph","submitted_at":"1997-03-14T17:40:24Z","title_canon_sha256":"3ee48eb384b55002590a7074c95f30a2040fe3737dde867d4952377679f75016"},"schema_version":"1.0","source":{"id":"hep-ph/9703327","kind":"arxiv","version":1}},"canonical_sha256":"16643f06793e86e387fa3143b645c82d0b8b503394a86d138e630e5233b6a14e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"16643f06793e86e387fa3143b645c82d0b8b503394a86d138e630e5233b6a14e","first_computed_at":"2026-05-18T02:37:05.118796Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:37:05.118796Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"g7NTh7g3CRESpyiAoQPUuBMOD3A6eA8lTk1buPX5PdhnWsOFVtvUpUraAu1Gwt1O6iBbzqfONOZbQIryk6mDAg==","signature_status":"signed_v1","signed_at":"2026-05-18T02:37:05.119440Z","signed_message":"canonical_sha256_bytes"},"source_id":"hep-ph/9703327","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f2628060aa57239620479512b824716c95e0c88c99d006e4bd2fd10a29b65dba","sha256:8bd838bd8bf0c7fb96ae024a6c17ee21ee2c8fee9629c4afbf6ae5487c63fba0"],"state_sha256":"05dfeb7cf41ab29239b86ca7f8ba11429c359184facd41fdce0af89a717f678f"}