{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:FQPOFXKO4BQWOEO7MXFOAM74ZD","short_pith_number":"pith:FQPOFXKO","schema_version":"1.0","canonical_sha256":"2c1ee2dd4ee0616711df65cae033fcc8dab65d9e36413547167a17a98ae0d1ca","source":{"kind":"arxiv","id":"1807.11731","version":2},"attestation_state":"computed","paper":{"title":"QEngine: An open-source C++ Library for Quantum Optimal Control of Ultracold Atoms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jacob Sherson, Jens Jakob S{\\o}rensen, Jesper Jensen, Till Heinzel","submitted_at":"2018-07-31T09:56:34Z","abstract_excerpt":"We present the first version of the QEngine, an open-source C++ library for simulating and controlling ultracold quantum systems using optimal control theory (OCT). The most notable systems presented here are Bose-Einstein condensates, many-body systems described by Bose-Hubbard type models, and two interacting particles. These systems can all be realized experimentally using ultracold atoms in various trapping geometries including optical lattices. In addition we provide a number of optimal control algorithms including the recently introduced GROUP method. The QEngine library has a strong foc"},"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":"1807.11731","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2018-07-31T09:56:34Z","cross_cats_sorted":[],"title_canon_sha256":"0499f988def793b199cd1cc56bc889e6769ed8a8c822d2c6564d4789d46f9fa9","abstract_canon_sha256":"653febd30320e008cbddc48695fddbe19647d4f94ed87e8e97a979f2c0a2d937"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:39:48.662551Z","signature_b64":"akiOhmW16xIP/uNuQJXLFzFNvKs/OQSyFEtPEtcLovmmFuXWkTD72RUbNHBBMEic6oW1S9scZ7rSHnpC+rsOAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"2c1ee2dd4ee0616711df65cae033fcc8dab65d9e36413547167a17a98ae0d1ca","last_reissued_at":"2026-05-17T23:39:48.661855Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:39:48.661855Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"QEngine: An open-source C++ Library for Quantum Optimal Control of Ultracold Atoms","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"Jacob Sherson, Jens Jakob S{\\o}rensen, Jesper Jensen, Till Heinzel","submitted_at":"2018-07-31T09:56:34Z","abstract_excerpt":"We present the first version of the QEngine, an open-source C++ library for simulating and controlling ultracold quantum systems using optimal control theory (OCT). The most notable systems presented here are Bose-Einstein condensates, many-body systems described by Bose-Hubbard type models, and two interacting particles. These systems can all be realized experimentally using ultracold atoms in various trapping geometries including optical lattices. In addition we provide a number of optimal control algorithms including the recently introduced GROUP method. The QEngine library has a strong foc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.11731","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":"1807.11731","created_at":"2026-05-17T23:39:48.661969+00:00"},{"alias_kind":"arxiv_version","alias_value":"1807.11731v2","created_at":"2026-05-17T23:39:48.661969+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.11731","created_at":"2026-05-17T23:39:48.661969+00:00"},{"alias_kind":"pith_short_12","alias_value":"FQPOFXKO4BQW","created_at":"2026-05-18T12:32:25.280505+00:00"},{"alias_kind":"pith_short_16","alias_value":"FQPOFXKO4BQWOEO7","created_at":"2026-05-18T12:32:25.280505+00:00"},{"alias_kind":"pith_short_8","alias_value":"FQPOFXKO","created_at":"2026-05-18T12:32:25.280505+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/FQPOFXKO4BQWOEO7MXFOAM74ZD","json":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD.json","graph_json":"https://pith.science/api/pith-number/FQPOFXKO4BQWOEO7MXFOAM74ZD/graph.json","events_json":"https://pith.science/api/pith-number/FQPOFXKO4BQWOEO7MXFOAM74ZD/events.json","paper":"https://pith.science/paper/FQPOFXKO"},"agent_actions":{"view_html":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD","download_json":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD.json","view_paper":"https://pith.science/paper/FQPOFXKO","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1807.11731&json=true","fetch_graph":"https://pith.science/api/pith-number/FQPOFXKO4BQWOEO7MXFOAM74ZD/graph.json","fetch_events":"https://pith.science/api/pith-number/FQPOFXKO4BQWOEO7MXFOAM74ZD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD/action/storage_attestation","attest_author":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD/action/author_attestation","sign_citation":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD/action/citation_signature","submit_replication":"https://pith.science/pith/FQPOFXKO4BQWOEO7MXFOAM74ZD/action/replication_record"}},"created_at":"2026-05-17T23:39:48.661969+00:00","updated_at":"2026-05-17T23:39:48.661969+00:00"}