{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:JDAQY7J3O6LBLXT7LKQJI6WLSL","short_pith_number":"pith:JDAQY7J3","schema_version":"1.0","canonical_sha256":"48c10c7d3b779615de7f5aa0947acb92e6479d8a72bfea1c4a86d1e6ccd39475","source":{"kind":"arxiv","id":"1805.00538","version":1},"attestation_state":"computed","paper":{"title":"First principles absorption spectra of Au nanoparticles: from quantum to classical","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atm-clus","authors_text":"Daniel Neuhauser, Eran Rabani, Robert Boutelle, Roi Baer, Samuel Hernandez, Vojt\\v{e}ch Vl\\v{c}ek, Yantao Xia","submitted_at":"2018-05-01T20:12:12Z","abstract_excerpt":"Absorption cross-section spectra for gold nanoparticles were calculated using fully quantum Stochastic Density Functional Theory and a classical Finite-Difference Time Domain (FDTD) Maxwell solver. Spectral shifts were monitored as a function of size (1.3-3.1 nm) and shape (octahedron, cubeoctahedron, and truncated cube). Even though the classical approach is forced to fit the quantum TDDFT at 3.1nm, at smaller sizes there is a significant deviation as the classical theory is unable to account for peak splitting and spectral blue shifts even after quantum spectral corrections. We attribute the"},"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":"1805.00538","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.atm-clus","submitted_at":"2018-05-01T20:12:12Z","cross_cats_sorted":[],"title_canon_sha256":"7ca72aa7c1897792b3523a78ba115ca95b99f7efdb4a82775396710fc0de8119","abstract_canon_sha256":"5f9d4d675e6630e8b2ec3f7ea49c73200615bee892c6705dbd1ca473a0dc1276"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:58.647941Z","signature_b64":"Mi9JtGekhLLQbykx15AWoeWcnCoQShjegXyRfB8jb8iEYoWw55V3NRGnT2nEBmwWabxNKc2xW2JXhN48dU2WBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"48c10c7d3b779615de7f5aa0947acb92e6479d8a72bfea1c4a86d1e6ccd39475","last_reissued_at":"2026-05-18T00:04:58.647433Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:58.647433Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"First principles absorption spectra of Au nanoparticles: from quantum to classical","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.atm-clus","authors_text":"Daniel Neuhauser, Eran Rabani, Robert Boutelle, Roi Baer, Samuel Hernandez, Vojt\\v{e}ch Vl\\v{c}ek, Yantao Xia","submitted_at":"2018-05-01T20:12:12Z","abstract_excerpt":"Absorption cross-section spectra for gold nanoparticles were calculated using fully quantum Stochastic Density Functional Theory and a classical Finite-Difference Time Domain (FDTD) Maxwell solver. Spectral shifts were monitored as a function of size (1.3-3.1 nm) and shape (octahedron, cubeoctahedron, and truncated cube). Even though the classical approach is forced to fit the quantum TDDFT at 3.1nm, at smaller sizes there is a significant deviation as the classical theory is unable to account for peak splitting and spectral blue shifts even after quantum spectral corrections. We attribute the"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.00538","kind":"arxiv","version":1},"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":"1805.00538","created_at":"2026-05-18T00:04:58.647512+00:00"},{"alias_kind":"arxiv_version","alias_value":"1805.00538v1","created_at":"2026-05-18T00:04:58.647512+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.00538","created_at":"2026-05-18T00:04:58.647512+00:00"},{"alias_kind":"pith_short_12","alias_value":"JDAQY7J3O6LB","created_at":"2026-05-18T12:32:31.084164+00:00"},{"alias_kind":"pith_short_16","alias_value":"JDAQY7J3O6LBLXT7","created_at":"2026-05-18T12:32:31.084164+00:00"},{"alias_kind":"pith_short_8","alias_value":"JDAQY7J3","created_at":"2026-05-18T12:32:31.084164+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/JDAQY7J3O6LBLXT7LKQJI6WLSL","json":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL.json","graph_json":"https://pith.science/api/pith-number/JDAQY7J3O6LBLXT7LKQJI6WLSL/graph.json","events_json":"https://pith.science/api/pith-number/JDAQY7J3O6LBLXT7LKQJI6WLSL/events.json","paper":"https://pith.science/paper/JDAQY7J3"},"agent_actions":{"view_html":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL","download_json":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL.json","view_paper":"https://pith.science/paper/JDAQY7J3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1805.00538&json=true","fetch_graph":"https://pith.science/api/pith-number/JDAQY7J3O6LBLXT7LKQJI6WLSL/graph.json","fetch_events":"https://pith.science/api/pith-number/JDAQY7J3O6LBLXT7LKQJI6WLSL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL/action/storage_attestation","attest_author":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL/action/author_attestation","sign_citation":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL/action/citation_signature","submit_replication":"https://pith.science/pith/JDAQY7J3O6LBLXT7LKQJI6WLSL/action/replication_record"}},"created_at":"2026-05-18T00:04:58.647512+00:00","updated_at":"2026-05-18T00:04:58.647512+00:00"}