{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2026:SEJCMJFBSROBC6CAGOH6PKN67N","merge_version":"pith-open-graph-merge-v1","event_count":3,"valid_event_count":3,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"57d7d79ab5fde0544c2807690003e1b30308dce03cba027843715106cf37b398","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-20T16:27:34Z","title_canon_sha256":"06f87a87ac91f4dae57472f2866d15e3b82b8783dcfc81a149df9e5681ab3219"},"schema_version":"1.0","source":{"id":"2605.21562","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2605.21562","created_at":"2026-05-22T01:03:22Z"},{"alias_kind":"arxiv_version","alias_value":"2605.21562v1","created_at":"2026-05-22T01:03:22Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2605.21562","created_at":"2026-05-22T01:03:22Z"},{"alias_kind":"pith_short_12","alias_value":"SEJCMJFBSROB","created_at":"2026-05-22T01:03:22Z"},{"alias_kind":"pith_short_16","alias_value":"SEJCMJFBSROBC6CA","created_at":"2026-05-22T01:03:22Z"},{"alias_kind":"pith_short_8","alias_value":"SEJCMJFB","created_at":"2026-05-22T01:03:22Z"}],"graph_snapshots":[{"event_id":"sha256:6c522d0422e27e9214b8b597d488c0a85955c1242aeb868668844e6f183d2d80","target":"graph","created_at":"2026-05-22T01:03:22Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2605.21562/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We develop an optimization framework for high-efficiency quantum cycles implemented with a trapped Bose-Einstein condensate, whose control parameters are the trap stiffness and the interaction strength tuned via a Feshbach resonance. Optimal driving protocols for each stroke of the cycle are obtained from a variational description of the condensate dynamics combined with Nelson's stochastic quantization, which maps the quantum evolution onto an effective Ornstein-Uhlenbeck process. The optimal protocol is obtained by minimizing a user-defined cost functional that selects the best trade-off bet","authors_text":"Aaron Wandhammer, Giovanni Manfredi, Paul-Antoine Hervieux, Vincent Hardel","cross_cats":["physics.atom-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-20T16:27:34Z","title":"Optimal Quantum Feshbach Engines"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2605.21562","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":"sha256:68414f9793a4fc76911ba1a7d59514f8343ee89ba02ef2451b9e27214307156a","target":"record","created_at":"2026-05-22T01:03:22Z","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":"57d7d79ab5fde0544c2807690003e1b30308dce03cba027843715106cf37b398","cross_cats_sorted":["physics.atom-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2026-05-20T16:27:34Z","title_canon_sha256":"06f87a87ac91f4dae57472f2866d15e3b82b8783dcfc81a149df9e5681ab3219"},"schema_version":"1.0","source":{"id":"2605.21562","kind":"arxiv","version":1}},"canonical_sha256":"91122624a1945c117840338fe7a9befb405d2a157c040925ca5772a191897ffb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"91122624a1945c117840338fe7a9befb405d2a157c040925ca5772a191897ffb","first_computed_at":"2026-05-22T01:03:22.598767Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-22T01:03:22.598767Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"OAspCsVDoUdso7UhlIq2lsGZxCUlc7hB0nYzQNsOP86ql7odlIEQTaFo3yflFqDVPPPZ5Sn6RDsSiPD0z94SAQ==","signature_status":"signed_v1","signed_at":"2026-05-22T01:03:22.599610Z","signed_message":"canonical_sha256_bytes"},"source_id":"2605.21562","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:68414f9793a4fc76911ba1a7d59514f8343ee89ba02ef2451b9e27214307156a","sha256:6c522d0422e27e9214b8b597d488c0a85955c1242aeb868668844e6f183d2d80","sha256:4cabc1d5f88f2cc1f1159bbaba3e0629636a0ba876a34105741538a2fb998626"],"state_sha256":"ec4023a8637b54d843bc309560662383aa1a49212b92eda9631984fa638ae3c0"}