{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:WYUIXS4PVTPEAWTA2ZRSWOMYJY","short_pith_number":"pith:WYUIXS4P","schema_version":"1.0","canonical_sha256":"b6288bcb8facde405a60d6632b39984e273cf92bee4c1fdf78f7d09732286d76","source":{"kind":"arxiv","id":"1903.10532","version":2},"attestation_state":"computed","paper":{"title":"Entanglement Entropy of Two Coupled SYK Models and Eternal Traversable Wormhole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"hep-th","authors_text":"Pengfei Zhang, Yiming Chen","submitted_at":"2019-03-25T18:03:50Z","abstract_excerpt":"In this paper, we study the entanglement entropy between two SYK systems with bilinear coupling. We use the replica trick to calculate the entanglement entropy in the ground state. In parallel, we calculate the entanglement entropy through the Ryu-Takayanagi formula in gravity. For the ground state that is dual to an eternal traversable wormhole in AdS_2, the bulk quantum correction to the entanglement entropy is of the same order as the minimal surface area. The ground state of the coupled system is close to a thermofield double state with particular temperature and they have the same entangl"},"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":"1903.10532","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"hep-th","submitted_at":"2019-03-25T18:03:50Z","cross_cats_sorted":["cond-mat.str-el"],"title_canon_sha256":"b71584efce1ffb18dacdfb763d36e27c6afcc836e99950bff67006053a21335a","abstract_canon_sha256":"dcb4c5597da117ef4d8bb0b4d561ee9862b351f546e797294aa05d6a11414abf"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:54.505511Z","signature_b64":"6HYtxaZxV3fQnQUvTiXKAvMN23B1jR2Bom7FCOLGntuVgGCoaT4jv2zF6PTSFUUWXLV6/DOYAwVDoA5ibSSuCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b6288bcb8facde405a60d6632b39984e273cf92bee4c1fdf78f7d09732286d76","last_reissued_at":"2026-05-17T23:39:54.504966Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:54.504966Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Entanglement Entropy of Two Coupled SYK Models and Eternal Traversable Wormhole","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.str-el"],"primary_cat":"hep-th","authors_text":"Pengfei Zhang, Yiming Chen","submitted_at":"2019-03-25T18:03:50Z","abstract_excerpt":"In this paper, we study the entanglement entropy between two SYK systems with bilinear coupling. We use the replica trick to calculate the entanglement entropy in the ground state. In parallel, we calculate the entanglement entropy through the Ryu-Takayanagi formula in gravity. For the ground state that is dual to an eternal traversable wormhole in AdS_2, the bulk quantum correction to the entanglement entropy is of the same order as the minimal surface area. The ground state of the coupled system is close to a thermofield double state with particular temperature and they have the same entangl"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1903.10532","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":"1903.10532","created_at":"2026-05-17T23:39:54.505046+00:00"},{"alias_kind":"arxiv_version","alias_value":"1903.10532v2","created_at":"2026-05-17T23:39:54.505046+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1903.10532","created_at":"2026-05-17T23:39:54.505046+00:00"},{"alias_kind":"pith_short_12","alias_value":"WYUIXS4PVTPE","created_at":"2026-05-18T12:33:33.725879+00:00"},{"alias_kind":"pith_short_16","alias_value":"WYUIXS4PVTPEAWTA","created_at":"2026-05-18T12:33:33.725879+00:00"},{"alias_kind":"pith_short_8","alias_value":"WYUIXS4P","created_at":"2026-05-18T12:33:33.725879+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY","json":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY.json","graph_json":"https://pith.science/api/pith-number/WYUIXS4PVTPEAWTA2ZRSWOMYJY/graph.json","events_json":"https://pith.science/api/pith-number/WYUIXS4PVTPEAWTA2ZRSWOMYJY/events.json","paper":"https://pith.science/paper/WYUIXS4P"},"agent_actions":{"view_html":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY","download_json":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY.json","view_paper":"https://pith.science/paper/WYUIXS4P","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1903.10532&json=true","fetch_graph":"https://pith.science/api/pith-number/WYUIXS4PVTPEAWTA2ZRSWOMYJY/graph.json","fetch_events":"https://pith.science/api/pith-number/WYUIXS4PVTPEAWTA2ZRSWOMYJY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY/action/storage_attestation","attest_author":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY/action/author_attestation","sign_citation":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY/action/citation_signature","submit_replication":"https://pith.science/pith/WYUIXS4PVTPEAWTA2ZRSWOMYJY/action/replication_record"}},"created_at":"2026-05-17T23:39:54.505046+00:00","updated_at":"2026-05-17T23:39:54.505046+00:00"}