{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:OUVIMXHUAODIRKXPXG4RVG3DZK","short_pith_number":"pith:OUVIMXHU","schema_version":"1.0","canonical_sha256":"752a865cf4038688aaefb9b91a9b63ca8e259225d3916169c9e010fbb3f5e6bd","source":{"kind":"arxiv","id":"1711.08919","version":2},"attestation_state":"computed","paper":{"title":"Quantum mechanical treatment of large spin baths","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Benedikt Fauseweh, G\\\"otz S. Uhrig, Lars B. Gravert, Philipp Schering, Robin R\\\"ohrig","submitted_at":"2017-11-24T10:28:47Z","abstract_excerpt":"The electronic spin in quantum dots can be described by central spin models (CSMs) with a very large number $N_\\mathrm{eff} \\approx 10^4$ to $10^6$ of bath spins posing a tremendous challenge to theoretical simulations. Here, a fully quantum mechanical theory is developed for the limit $N_\\mathrm{eff} \\to \\infty$ by means of iterated equations of motion (iEoM). We find that the CSM can be mapped to a four-dimensional impurity coupled to a non-interacting bosonic bath in this limit. Remarkably, even for infinite bath the CSM does not become completely classical. The data obtained by the propose"},"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":"1711.08919","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-11-24T10:28:47Z","cross_cats_sorted":["cond-mat.mes-hall"],"title_canon_sha256":"1f731e5ce10ba00a672792dbf00ee21580aa0b95159a0f957e1af4ba5799a649","abstract_canon_sha256":"35541e3c12296b6c0b88f099b6bf4cb66610e00a6ea696e97b2e3b437aa90c3a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:17:54.026596Z","signature_b64":"bFQ6gdjFV1yKU3duNxS2jqNlxsSTxIZORhS3Uco2I22XCqGoTlhLK+KdPr5W/WZuI/+SVXLa+FisyunWCSVnDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"752a865cf4038688aaefb9b91a9b63ca8e259225d3916169c9e010fbb3f5e6bd","last_reissued_at":"2026-05-18T00:17:54.026025Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:17:54.026025Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum mechanical treatment of large spin baths","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall"],"primary_cat":"quant-ph","authors_text":"Benedikt Fauseweh, G\\\"otz S. Uhrig, Lars B. Gravert, Philipp Schering, Robin R\\\"ohrig","submitted_at":"2017-11-24T10:28:47Z","abstract_excerpt":"The electronic spin in quantum dots can be described by central spin models (CSMs) with a very large number $N_\\mathrm{eff} \\approx 10^4$ to $10^6$ of bath spins posing a tremendous challenge to theoretical simulations. Here, a fully quantum mechanical theory is developed for the limit $N_\\mathrm{eff} \\to \\infty$ by means of iterated equations of motion (iEoM). We find that the CSM can be mapped to a four-dimensional impurity coupled to a non-interacting bosonic bath in this limit. Remarkably, even for infinite bath the CSM does not become completely classical. The data obtained by the propose"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.08919","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":"1711.08919","created_at":"2026-05-18T00:17:54.026115+00:00"},{"alias_kind":"arxiv_version","alias_value":"1711.08919v2","created_at":"2026-05-18T00:17:54.026115+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.08919","created_at":"2026-05-18T00:17:54.026115+00:00"},{"alias_kind":"pith_short_12","alias_value":"OUVIMXHUAODI","created_at":"2026-05-18T12:31:34.259226+00:00"},{"alias_kind":"pith_short_16","alias_value":"OUVIMXHUAODIRKXP","created_at":"2026-05-18T12:31:34.259226+00:00"},{"alias_kind":"pith_short_8","alias_value":"OUVIMXHU","created_at":"2026-05-18T12:31:34.259226+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/OUVIMXHUAODIRKXPXG4RVG3DZK","json":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK.json","graph_json":"https://pith.science/api/pith-number/OUVIMXHUAODIRKXPXG4RVG3DZK/graph.json","events_json":"https://pith.science/api/pith-number/OUVIMXHUAODIRKXPXG4RVG3DZK/events.json","paper":"https://pith.science/paper/OUVIMXHU"},"agent_actions":{"view_html":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK","download_json":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK.json","view_paper":"https://pith.science/paper/OUVIMXHU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1711.08919&json=true","fetch_graph":"https://pith.science/api/pith-number/OUVIMXHUAODIRKXPXG4RVG3DZK/graph.json","fetch_events":"https://pith.science/api/pith-number/OUVIMXHUAODIRKXPXG4RVG3DZK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK/action/storage_attestation","attest_author":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK/action/author_attestation","sign_citation":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK/action/citation_signature","submit_replication":"https://pith.science/pith/OUVIMXHUAODIRKXPXG4RVG3DZK/action/replication_record"}},"created_at":"2026-05-18T00:17:54.026115+00:00","updated_at":"2026-05-18T00:17:54.026115+00:00"}