{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:RNQ2BAEUY5WQXPJ2ICDL4EWC7B","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":"c64a710dc72f7128db0ac46c0d69e264c62532a094e9fecd9bcb762863f95aaa","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-05-02T04:03:32Z","title_canon_sha256":"5cffdfcb032874f126a2146ea82874763289636cb88bbca5d0b8eb93057fc26f"},"schema_version":"1.0","source":{"id":"1805.00614","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.00614","created_at":"2026-05-18T00:16:58Z"},{"alias_kind":"arxiv_version","alias_value":"1805.00614v1","created_at":"2026-05-18T00:16:58Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.00614","created_at":"2026-05-18T00:16:58Z"},{"alias_kind":"pith_short_12","alias_value":"RNQ2BAEUY5WQ","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_16","alias_value":"RNQ2BAEUY5WQXPJ2","created_at":"2026-05-18T12:32:50Z"},{"alias_kind":"pith_short_8","alias_value":"RNQ2BAEU","created_at":"2026-05-18T12:32:50Z"}],"graph_snapshots":[{"event_id":"sha256:c09bc308ce4dfef0e5473859a9a9f644c3aac2077c26d90667bbcc913f437a0c","target":"graph","created_at":"2026-05-18T00:16:58Z","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":"The formation of charged pion condensate under parallel electromagnetic fields is studied within the two-flavor Nambu--Jona-Lasinio model. The technique of Schwinger proper time method is extended to explore the quantity locating in the off-diagonal flavor space, i.e., charged pion. We obtain the associated effective potential as a function of the strength of the electromagnetic fields and find out that it contains a sextic term which possibly induce weakly first order phase transition. Dependence of pion condensation on model parameters is investigated.","authors_text":"Andrey Radzhabov, Jingyi Chao, Mei Huang","cross_cats":["nucl-th"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-05-02T04:03:32Z","title":"Charged pion condensation under parallel electromagnetic fields"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.00614","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:e900fe13614bd6117b16131bb32fb0a16c2d4e6885c47b6259854edbbc5fdcc4","target":"record","created_at":"2026-05-18T00:16:58Z","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":"c64a710dc72f7128db0ac46c0d69e264c62532a094e9fecd9bcb762863f95aaa","cross_cats_sorted":["nucl-th"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-ph","submitted_at":"2018-05-02T04:03:32Z","title_canon_sha256":"5cffdfcb032874f126a2146ea82874763289636cb88bbca5d0b8eb93057fc26f"},"schema_version":"1.0","source":{"id":"1805.00614","kind":"arxiv","version":1}},"canonical_sha256":"8b61a08094c76d0bbd3a4086be12c2f876f58973a0235a5dec2d4a7aca529fd5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"8b61a08094c76d0bbd3a4086be12c2f876f58973a0235a5dec2d4a7aca529fd5","first_computed_at":"2026-05-18T00:16:58.358785Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:16:58.358785Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"TFYQA4jQDlmc1LlMV/8mkeUDALY3DZU7a/zz7mgx1OI8gf05C531nWQm90IMw6eNFlwuPKW92K03GnyLE0PvBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:16:58.359437Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.00614","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e900fe13614bd6117b16131bb32fb0a16c2d4e6885c47b6259854edbbc5fdcc4","sha256:c09bc308ce4dfef0e5473859a9a9f644c3aac2077c26d90667bbcc913f437a0c"],"state_sha256":"ed6d6c0917a66f530bcec355970fab8351b9423dc7cd66ceb5baad5b313625b1"}