{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:NDIFHHSMVOG3WEGLFR6MJF2QM7","short_pith_number":"pith:NDIFHHSM","schema_version":"1.0","canonical_sha256":"68d0539e4cab8dbb10cb2c7cc4975067d41306ab5d340189d2e11311097c1a47","source":{"kind":"arxiv","id":"1505.08045","version":3},"attestation_state":"computed","paper":{"title":"Coupled-cluster theory for atoms and molecules in strong magnetic fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Erik I. Tellgren, J\\\"urgen Gauss, Kai K. Lange, Stella Stopkowicz, Trygve Helgaker","submitted_at":"2015-05-29T13:55:14Z","abstract_excerpt":"An implementation of coupled-cluster (CC) theory to treat atoms and molecules in finite magnetic fields is presented. The main challenges stem from the magnetic-field dependence in the Hamiltonian, or, more precisely, the appearance of the angular momentum operator, due to which the wave function becomes complex and which introduces a gauge-origin dependence. For this reason, an implementation of a complex CC code is required together with the use of gauge-including atomic orbitals to ensure gauge-origin independence. Results of coupled-cluster singles--doubles--perturbative-triples (CCSD(T)) "},"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":"1505.08045","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2015-05-29T13:55:14Z","cross_cats_sorted":[],"title_canon_sha256":"d93c10f4932dffea8ada3403d2637e4d8dca86a596443b9ed7eecc0180974585","abstract_canon_sha256":"5461c14105c84b11505fdf9ad76e7c7faf94eb3ede2024e8e5cc3023096b174e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:34:16.516242Z","signature_b64":"o5p0bP9PYu1Ju1BDiaWxv8fpRtVSdQTU2V8EjzRluxvZ6YvFQIub1/PRPx6n/m8x/TgswunUp+YdB1Baav+tDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"68d0539e4cab8dbb10cb2c7cc4975067d41306ab5d340189d2e11311097c1a47","last_reissued_at":"2026-05-18T01:34:16.515469Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:34:16.515469Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coupled-cluster theory for atoms and molecules in strong magnetic fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.chem-ph","authors_text":"Erik I. Tellgren, J\\\"urgen Gauss, Kai K. Lange, Stella Stopkowicz, Trygve Helgaker","submitted_at":"2015-05-29T13:55:14Z","abstract_excerpt":"An implementation of coupled-cluster (CC) theory to treat atoms and molecules in finite magnetic fields is presented. The main challenges stem from the magnetic-field dependence in the Hamiltonian, or, more precisely, the appearance of the angular momentum operator, due to which the wave function becomes complex and which introduces a gauge-origin dependence. For this reason, an implementation of a complex CC code is required together with the use of gauge-including atomic orbitals to ensure gauge-origin independence. Results of coupled-cluster singles--doubles--perturbative-triples (CCSD(T)) "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.08045","kind":"arxiv","version":3},"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":"1505.08045","created_at":"2026-05-18T01:34:16.515610+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.08045v3","created_at":"2026-05-18T01:34:16.515610+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.08045","created_at":"2026-05-18T01:34:16.515610+00:00"},{"alias_kind":"pith_short_12","alias_value":"NDIFHHSMVOG3","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_16","alias_value":"NDIFHHSMVOG3WEGL","created_at":"2026-05-18T12:29:32.376354+00:00"},{"alias_kind":"pith_short_8","alias_value":"NDIFHHSM","created_at":"2026-05-18T12:29:32.376354+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/NDIFHHSMVOG3WEGLFR6MJF2QM7","json":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7.json","graph_json":"https://pith.science/api/pith-number/NDIFHHSMVOG3WEGLFR6MJF2QM7/graph.json","events_json":"https://pith.science/api/pith-number/NDIFHHSMVOG3WEGLFR6MJF2QM7/events.json","paper":"https://pith.science/paper/NDIFHHSM"},"agent_actions":{"view_html":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7","download_json":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7.json","view_paper":"https://pith.science/paper/NDIFHHSM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.08045&json=true","fetch_graph":"https://pith.science/api/pith-number/NDIFHHSMVOG3WEGLFR6MJF2QM7/graph.json","fetch_events":"https://pith.science/api/pith-number/NDIFHHSMVOG3WEGLFR6MJF2QM7/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7/action/timestamp_anchor","attest_storage":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7/action/storage_attestation","attest_author":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7/action/author_attestation","sign_citation":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7/action/citation_signature","submit_replication":"https://pith.science/pith/NDIFHHSMVOG3WEGLFR6MJF2QM7/action/replication_record"}},"created_at":"2026-05-18T01:34:16.515610+00:00","updated_at":"2026-05-18T01:34:16.515610+00:00"}