{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:HLRFZPB4WPC6KVKHJSLS5PW3O4","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":"37c9cfe96674509653d67f39adeb66dd6485f03aef381c388b3a7d55ca2737a5","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2014-02-05T22:02:31Z","title_canon_sha256":"68f9729e6e68d89d7158598ff94ec44396352d04ba83877464600cf6577e7329"},"schema_version":"1.0","source":{"id":"1402.1196","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1402.1196","created_at":"2026-05-18T02:59:59Z"},{"alias_kind":"arxiv_version","alias_value":"1402.1196v1","created_at":"2026-05-18T02:59:59Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1402.1196","created_at":"2026-05-18T02:59:59Z"},{"alias_kind":"pith_short_12","alias_value":"HLRFZPB4WPC6","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_16","alias_value":"HLRFZPB4WPC6KVKH","created_at":"2026-05-18T12:28:30Z"},{"alias_kind":"pith_short_8","alias_value":"HLRFZPB4","created_at":"2026-05-18T12:28:30Z"}],"graph_snapshots":[{"event_id":"sha256:24a56bc09f165134f9a37c383a310bbc2c6146f50163d138d53fbe00a6251863","target":"graph","created_at":"2026-05-18T02:59:59Z","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 lifetime of single-particle excitations in a dilute homogeneous Bose-Einstein condensate at zero temperature based on a self-consistent perturbation expansion of satisfying Goldstone's theorem and conservation laws simultaneously.It is shown that every excitation for each momentum ${\\bf p}$ should have a finite lifetime proportional to the inverse $a^{-1}$ of the $s$-wave scattering length $a$, instead of $a^{-2}$ for the normal state, due to a new class of Feynman diagrams for the self-energy that emerges upon condensation. We calculate the lifetime as a function of $|{\\bf p}|$ a","authors_text":"Kazumasa Tsutsui, Takafumi Kita","cross_cats":["cond-mat.supr-con"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2014-02-05T22:02:31Z","title":"Lifetime of Single-Particle Excitations in a Dilute Bose-Einstein Condensate at Zero Temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1402.1196","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":"sha256:13c1646d61fe6e037a18c81f7ed45d21a474dea3fa4d792e423a5f7e6a70de31","target":"record","created_at":"2026-05-18T02:59:59Z","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":"37c9cfe96674509653d67f39adeb66dd6485f03aef381c388b3a7d55ca2737a5","cross_cats_sorted":["cond-mat.supr-con"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2014-02-05T22:02:31Z","title_canon_sha256":"68f9729e6e68d89d7158598ff94ec44396352d04ba83877464600cf6577e7329"},"schema_version":"1.0","source":{"id":"1402.1196","kind":"arxiv","version":1}},"canonical_sha256":"3ae25cbc3cb3c5e555474c972ebedb773d6ed3b5dedcfa15f31fbe6c334bf56c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"3ae25cbc3cb3c5e555474c972ebedb773d6ed3b5dedcfa15f31fbe6c334bf56c","first_computed_at":"2026-05-18T02:59:59.934733Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:59:59.934733Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jV1KW/R/zrLVe6W5NEl2VlWJRVvziuaQ9IPhbQRA0gMTNMDyYDIE8w99wsX8UL7As0yTS5X3EEx4ER+wYpoyAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:59:59.935565Z","signed_message":"canonical_sha256_bytes"},"source_id":"1402.1196","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:13c1646d61fe6e037a18c81f7ed45d21a474dea3fa4d792e423a5f7e6a70de31","sha256:24a56bc09f165134f9a37c383a310bbc2c6146f50163d138d53fbe00a6251863"],"state_sha256":"e01103da63b5f8516b4ce71fe8949e7798b6cf9b63fb2e313d01eebf44d16b5f"}