{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:QBVSMXKPHXXRL3CC5X5HXZATFF","short_pith_number":"pith:QBVSMXKP","canonical_record":{"source":{"id":"1310.6652","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-10-24T15:55:46Z","cross_cats_sorted":[],"title_canon_sha256":"67d0dc7bcd4576938c7b6134036fc8e589075714e0c472fa11667e6bd68981b5","abstract_canon_sha256":"e44b6dcecd8890661fbe2a8113b809542904d38e68d8f7d84d95ef146db60d6c"},"schema_version":"1.0"},"canonical_sha256":"806b265d4f3def15ec42edfa7be41329461fdd97076c1057887e32c70c8f680b","source":{"kind":"arxiv","id":"1310.6652","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.6652","created_at":"2026-05-18T02:44:23Z"},{"alias_kind":"arxiv_version","alias_value":"1310.6652v2","created_at":"2026-05-18T02:44:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.6652","created_at":"2026-05-18T02:44:23Z"},{"alias_kind":"pith_short_12","alias_value":"QBVSMXKPHXXR","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QBVSMXKPHXXRL3CC","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QBVSMXKP","created_at":"2026-05-18T12:27:57Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:QBVSMXKPHXXRL3CC5X5HXZATFF","target":"record","payload":{"canonical_record":{"source":{"id":"1310.6652","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-10-24T15:55:46Z","cross_cats_sorted":[],"title_canon_sha256":"67d0dc7bcd4576938c7b6134036fc8e589075714e0c472fa11667e6bd68981b5","abstract_canon_sha256":"e44b6dcecd8890661fbe2a8113b809542904d38e68d8f7d84d95ef146db60d6c"},"schema_version":"1.0"},"canonical_sha256":"806b265d4f3def15ec42edfa7be41329461fdd97076c1057887e32c70c8f680b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:44:23.176130Z","signature_b64":"0CCDNWbAGs5DnNvIuytiWAseDLwyeAJx5Hnt597v9T2PIrL4ogsPnnI4aZmeyb/hrWeXGALPr1Yh6bqEsFqpDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"806b265d4f3def15ec42edfa7be41329461fdd97076c1057887e32c70c8f680b","last_reissued_at":"2026-05-18T02:44:23.175702Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:44:23.175702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1310.6652","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:44:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"/wJU1HXS15Avx1SxHKgNTybxfJMH2I/KE3QDRJZqwhCSK94Yrg9oyYY5JNfe0utzZ35vD4QVsEEo4tpZAGjWCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T10:57:58.496372Z"},"content_sha256":"23c8c13b9c81d67e615e3a674f6785def929912d5163cd35886ef11a4d49aafd","schema_version":"1.0","event_id":"sha256:23c8c13b9c81d67e615e3a674f6785def929912d5163cd35886ef11a4d49aafd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:QBVSMXKPHXXRL3CC5X5HXZATFF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Quenching the magnetic flux in 1d fermionic ring: Loschmidt echo and edge singularity","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.stat-mech","authors_text":"Andrea De Luca","submitted_at":"2013-10-24T15:55:46Z","abstract_excerpt":"We consider the non-equilibrium dynamics of a system of interacting massless fermions in a ring threaded by a magnetic flux. We focus on the quench where the flux is initially vanishing and is then turned on. We show that the definition of the limit of abrupt quench is problematic due to the presence of gauge invariance that has to be taken into account. We then propose a specific protocol where the dynamics is non-trivial. Employing techniques coming from the Algebraic Bethe-Ansatz, we present an exact formula for the Loschmidt echo valid at all times as a Fredholm determinant at the free fer"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.6652","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:44:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"iCkp3itHrgRKWdK37TyHhJwQnmCye2arIiw3sEQHfIKNVniwTBl9/KdRAv/MTFW+HS41SyuB2GtNkybFotIqAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T10:57:58.496717Z"},"content_sha256":"974806012d053c7379fda5ac7b7a74574d6661bb23ebd5e0fb254764eb95484c","schema_version":"1.0","event_id":"sha256:974806012d053c7379fda5ac7b7a74574d6661bb23ebd5e0fb254764eb95484c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/QBVSMXKPHXXRL3CC5X5HXZATFF/bundle.json","state_url":"https://pith.science/pith/QBVSMXKPHXXRL3CC5X5HXZATFF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/QBVSMXKPHXXRL3CC5X5HXZATFF/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T10:57:58Z","links":{"resolver":"https://pith.science/pith/QBVSMXKPHXXRL3CC5X5HXZATFF","bundle":"https://pith.science/pith/QBVSMXKPHXXRL3CC5X5HXZATFF/bundle.json","state":"https://pith.science/pith/QBVSMXKPHXXRL3CC5X5HXZATFF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/QBVSMXKPHXXRL3CC5X5HXZATFF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:QBVSMXKPHXXRL3CC5X5HXZATFF","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":"e44b6dcecd8890661fbe2a8113b809542904d38e68d8f7d84d95ef146db60d6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-10-24T15:55:46Z","title_canon_sha256":"67d0dc7bcd4576938c7b6134036fc8e589075714e0c472fa11667e6bd68981b5"},"schema_version":"1.0","source":{"id":"1310.6652","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1310.6652","created_at":"2026-05-18T02:44:23Z"},{"alias_kind":"arxiv_version","alias_value":"1310.6652v2","created_at":"2026-05-18T02:44:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1310.6652","created_at":"2026-05-18T02:44:23Z"},{"alias_kind":"pith_short_12","alias_value":"QBVSMXKPHXXR","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_16","alias_value":"QBVSMXKPHXXRL3CC","created_at":"2026-05-18T12:27:57Z"},{"alias_kind":"pith_short_8","alias_value":"QBVSMXKP","created_at":"2026-05-18T12:27:57Z"}],"graph_snapshots":[{"event_id":"sha256:974806012d053c7379fda5ac7b7a74574d6661bb23ebd5e0fb254764eb95484c","target":"graph","created_at":"2026-05-18T02:44:23Z","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 consider the non-equilibrium dynamics of a system of interacting massless fermions in a ring threaded by a magnetic flux. We focus on the quench where the flux is initially vanishing and is then turned on. We show that the definition of the limit of abrupt quench is problematic due to the presence of gauge invariance that has to be taken into account. We then propose a specific protocol where the dynamics is non-trivial. Employing techniques coming from the Algebraic Bethe-Ansatz, we present an exact formula for the Loschmidt echo valid at all times as a Fredholm determinant at the free fer","authors_text":"Andrea De Luca","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-10-24T15:55:46Z","title":"Quenching the magnetic flux in 1d fermionic ring: Loschmidt echo and edge singularity"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1310.6652","kind":"arxiv","version":2},"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":"sha256:23c8c13b9c81d67e615e3a674f6785def929912d5163cd35886ef11a4d49aafd","target":"record","created_at":"2026-05-18T02:44:23Z","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":"e44b6dcecd8890661fbe2a8113b809542904d38e68d8f7d84d95ef146db60d6c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.stat-mech","submitted_at":"2013-10-24T15:55:46Z","title_canon_sha256":"67d0dc7bcd4576938c7b6134036fc8e589075714e0c472fa11667e6bd68981b5"},"schema_version":"1.0","source":{"id":"1310.6652","kind":"arxiv","version":2}},"canonical_sha256":"806b265d4f3def15ec42edfa7be41329461fdd97076c1057887e32c70c8f680b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"806b265d4f3def15ec42edfa7be41329461fdd97076c1057887e32c70c8f680b","first_computed_at":"2026-05-18T02:44:23.175702Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:44:23.175702Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0CCDNWbAGs5DnNvIuytiWAseDLwyeAJx5Hnt597v9T2PIrL4ogsPnnI4aZmeyb/hrWeXGALPr1Yh6bqEsFqpDQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:44:23.176130Z","signed_message":"canonical_sha256_bytes"},"source_id":"1310.6652","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:23c8c13b9c81d67e615e3a674f6785def929912d5163cd35886ef11a4d49aafd","sha256:974806012d053c7379fda5ac7b7a74574d6661bb23ebd5e0fb254764eb95484c"],"state_sha256":"4ba78e091b25abad06df3385097594ff4006c77dfb3f40f7cb6b2fbfecc7e3ed"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"kJBV1YtkGenk01oOwSLv72gHUW/P96ff2n2nx06kg/upiWPP6rPsbQCorktFcdHdMrHnHpGpesc7WMpDHpWtCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T10:57:58.498604Z","bundle_sha256":"4db0f074aeda2e00bc299169eef9e6966745f5c178cf7544ba190a4ff84c640f"}}