{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:JZV6FEZRHGYXA4ZJ4DWKPVSF75","short_pith_number":"pith:JZV6FEZR","canonical_record":{"source":{"id":"1811.05099","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T04:40:44Z","cross_cats_sorted":[],"title_canon_sha256":"f9fe8fc55e04925296d6d6a19e2d8d4bde3aa4b049990726e432e748b7708a61","abstract_canon_sha256":"d70bc36f5c4006856d5f20b85ac253f13306f75e81100e494e84e42c34dccbc4"},"schema_version":"1.0"},"canonical_sha256":"4e6be2933139b1707329e0eca7d645ff78dbdf59e12994f59b2c63c66c0d25a9","source":{"kind":"arxiv","id":"1811.05099","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.05099","created_at":"2026-05-17T23:55:54Z"},{"alias_kind":"arxiv_version","alias_value":"1811.05099v2","created_at":"2026-05-17T23:55:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.05099","created_at":"2026-05-17T23:55:54Z"},{"alias_kind":"pith_short_12","alias_value":"JZV6FEZRHGYX","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"JZV6FEZRHGYXA4ZJ","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"JZV6FEZR","created_at":"2026-05-18T12:32:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:JZV6FEZRHGYXA4ZJ4DWKPVSF75","target":"record","payload":{"canonical_record":{"source":{"id":"1811.05099","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T04:40:44Z","cross_cats_sorted":[],"title_canon_sha256":"f9fe8fc55e04925296d6d6a19e2d8d4bde3aa4b049990726e432e748b7708a61","abstract_canon_sha256":"d70bc36f5c4006856d5f20b85ac253f13306f75e81100e494e84e42c34dccbc4"},"schema_version":"1.0"},"canonical_sha256":"4e6be2933139b1707329e0eca7d645ff78dbdf59e12994f59b2c63c66c0d25a9","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:55:54.134832Z","signature_b64":"0BtRUfwRfIjfJopf6/1vKhme7Hs0DvklYhUtBbVMsXWZA7pOkPsdSHTAyZRE4gyoNXgiY9xoeZ5J3gqF39+CCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4e6be2933139b1707329e0eca7d645ff78dbdf59e12994f59b2c63c66c0d25a9","last_reissued_at":"2026-05-17T23:55:54.134159Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:55:54.134159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.05099","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":"2026-05-17T23:55:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9hV+DywiDE5CtwTkWfCbqPui0KknZY1AqZPuwq/KAaub/8FtB5zTAWwFPNrr/swljlRvIDOKRYAco5Tx6kNlCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:34:04.814569Z"},"content_sha256":"8c330d32b045a7f0b248b8424309e34d4a4d1a038924fc90ea6927316af621a5","schema_version":"1.0","event_id":"sha256:8c330d32b045a7f0b248b8424309e34d4a4d1a038924fc90ea6927316af621a5"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:JZV6FEZRHGYXA4ZJ4DWKPVSF75","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"High order exceptional points in ultracold Bose gases","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.quant-gas","authors_text":"Lei Pan, Shu Chen, Xiaoling Cui","submitted_at":"2018-11-13T04:40:44Z","abstract_excerpt":"We show that arbitrarily high-order exceptional points (EPs) can be achieved in a repulsively interacting two-species Bose gas in one dimension. By exactly solving the non-Hermitian two-boson problem, we demonstrate the existence of third-order EPs when the system is driven across the parity-time symmetry breaking transition. We further address the fourth-order EPs with three bosons and generalize the results to $N$-body system, where the EP order can be as high as $N+1$. Physically, such high order originates from the intrinsic ferromagnetic correlation in spinor bosons, which renders the ent"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.05099","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":"2026-05-17T23:55:54Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"wD6II8YoHMYzAceLQT/ZsCJdHHm+73riJRcN0nm+nAxIcBjrpYKlGQobCjBhpkUGdzS/FXxIQgoCnOACNC5XCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-27T18:34:04.814939Z"},"content_sha256":"c3330427b06d497b8945037b0e3311456ca812c30c5464e25b15f64bba88e9ab","schema_version":"1.0","event_id":"sha256:c3330427b06d497b8945037b0e3311456ca812c30c5464e25b15f64bba88e9ab"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75/bundle.json","state_url":"https://pith.science/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75/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":"2026-05-27T18:34:04Z","links":{"resolver":"https://pith.science/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75","bundle":"https://pith.science/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75/bundle.json","state":"https://pith.science/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75/state.json","well_known_bundle":"https://pith.science/.well-known/pith/JZV6FEZRHGYXA4ZJ4DWKPVSF75/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:JZV6FEZRHGYXA4ZJ4DWKPVSF75","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":"d70bc36f5c4006856d5f20b85ac253f13306f75e81100e494e84e42c34dccbc4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T04:40:44Z","title_canon_sha256":"f9fe8fc55e04925296d6d6a19e2d8d4bde3aa4b049990726e432e748b7708a61"},"schema_version":"1.0","source":{"id":"1811.05099","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.05099","created_at":"2026-05-17T23:55:54Z"},{"alias_kind":"arxiv_version","alias_value":"1811.05099v2","created_at":"2026-05-17T23:55:54Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.05099","created_at":"2026-05-17T23:55:54Z"},{"alias_kind":"pith_short_12","alias_value":"JZV6FEZRHGYX","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_16","alias_value":"JZV6FEZRHGYXA4ZJ","created_at":"2026-05-18T12:32:33Z"},{"alias_kind":"pith_short_8","alias_value":"JZV6FEZR","created_at":"2026-05-18T12:32:33Z"}],"graph_snapshots":[{"event_id":"sha256:c3330427b06d497b8945037b0e3311456ca812c30c5464e25b15f64bba88e9ab","target":"graph","created_at":"2026-05-17T23:55:54Z","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 show that arbitrarily high-order exceptional points (EPs) can be achieved in a repulsively interacting two-species Bose gas in one dimension. By exactly solving the non-Hermitian two-boson problem, we demonstrate the existence of third-order EPs when the system is driven across the parity-time symmetry breaking transition. We further address the fourth-order EPs with three bosons and generalize the results to $N$-body system, where the EP order can be as high as $N+1$. Physically, such high order originates from the intrinsic ferromagnetic correlation in spinor bosons, which renders the ent","authors_text":"Lei Pan, Shu Chen, Xiaoling Cui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T04:40:44Z","title":"High order exceptional points in ultracold Bose gases"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.05099","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":"sha256:8c330d32b045a7f0b248b8424309e34d4a4d1a038924fc90ea6927316af621a5","target":"record","created_at":"2026-05-17T23:55:54Z","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":"d70bc36f5c4006856d5f20b85ac253f13306f75e81100e494e84e42c34dccbc4","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T04:40:44Z","title_canon_sha256":"f9fe8fc55e04925296d6d6a19e2d8d4bde3aa4b049990726e432e748b7708a61"},"schema_version":"1.0","source":{"id":"1811.05099","kind":"arxiv","version":2}},"canonical_sha256":"4e6be2933139b1707329e0eca7d645ff78dbdf59e12994f59b2c63c66c0d25a9","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"4e6be2933139b1707329e0eca7d645ff78dbdf59e12994f59b2c63c66c0d25a9","first_computed_at":"2026-05-17T23:55:54.134159Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:55:54.134159Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"0BtRUfwRfIjfJopf6/1vKhme7Hs0DvklYhUtBbVMsXWZA7pOkPsdSHTAyZRE4gyoNXgiY9xoeZ5J3gqF39+CCA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:55:54.134832Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.05099","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:8c330d32b045a7f0b248b8424309e34d4a4d1a038924fc90ea6927316af621a5","sha256:c3330427b06d497b8945037b0e3311456ca812c30c5464e25b15f64bba88e9ab"],"state_sha256":"52b1ddcba4aa82ceafdd8befe97267c712c32607778536f3fba6da4c8c4121c9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ypyAf3twd1naCw3EsPD8mvcbYcV3pUBnaOG3tUfmXcCZPlXlJzsvJwEroFl9cBXUkn9PGI+57erIxCLz6LwVCw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-27T18:34:04.817264Z","bundle_sha256":"f7d8c607bd69731c2e3695c4ad92e4e19697f893acf89e9fe22d0525a0d43574"}}