{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:IBQRAN3F4BFPJKYI44HJTDWFML","short_pith_number":"pith:IBQRAN3F","schema_version":"1.0","canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","source":{"kind":"arxiv","id":"1702.08163","version":4},"attestation_state":"computed","paper":{"title":"Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chao Lian, Meng-Xue Guan, Sheng Meng, Shi-Qi Hu","submitted_at":"2017-02-27T07:13:34Z","abstract_excerpt":"Ultrafast electronic dynamics in solids lies at the core of modern condensed matter and materials physics. To build up a practical ab initio method for studying solids under photoexcitation, we develop a momentum-resolved real-time time dependent density functional theory (rt-TDDFT)algorithm using numerical atomic basis, together with the implementation of both the length and vector gauge of the electromagnetic field. When applied to simulate elementary excitations in two-dimensional materials such as graphene, different excitation modes, only distinguishable in momentum space, are observed. 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":"1702.08163","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2017-02-27T07:13:34Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"ff38968e2cd86058b512e5b0dee19f9c7188c1d6e5068728b486beb55c8f9137","abstract_canon_sha256":"9530df5643e5e7b08e6fa02bed0147cd6b0c3d51b5a8c6431bb9df4757bb71de"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:03:19.845818Z","signature_b64":"1ZVVOOLv8PXW7VACXnqdHQ5i7KDdL+xi2JsDWQgrDlCavADyMHLyfdd+EOk6HbIIWfL0ZIss5Pa5Xio8KNooCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"4061103765e04af4ab08e70e998ec562d6c49fbde7a0d51bad429ffa6f714568","last_reissued_at":"2026-05-18T00:03:19.845293Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:03:19.845293Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Momentum-resolved TDDFT algorithm in atomic basis for real time tracking of electronic excitation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"cond-mat.mtrl-sci","authors_text":"Chao Lian, Meng-Xue Guan, Sheng Meng, Shi-Qi Hu","submitted_at":"2017-02-27T07:13:34Z","abstract_excerpt":"Ultrafast electronic dynamics in solids lies at the core of modern condensed matter and materials physics. To build up a practical ab initio method for studying solids under photoexcitation, we develop a momentum-resolved real-time time dependent density functional theory (rt-TDDFT)algorithm using numerical atomic basis, together with the implementation of both the length and vector gauge of the electromagnetic field. When applied to simulate elementary excitations in two-dimensional materials such as graphene, different excitation modes, only distinguishable in momentum space, are observed. T"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.08163","kind":"arxiv","version":4},"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":"1702.08163","created_at":"2026-05-18T00:03:19.845383+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.08163v4","created_at":"2026-05-18T00:03:19.845383+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.08163","created_at":"2026-05-18T00:03:19.845383+00:00"},{"alias_kind":"pith_short_12","alias_value":"IBQRAN3F4BFP","created_at":"2026-05-18T12:31:21.493067+00:00"},{"alias_kind":"pith_short_16","alias_value":"IBQRAN3F4BFPJKYI","created_at":"2026-05-18T12:31:21.493067+00:00"},{"alias_kind":"pith_short_8","alias_value":"IBQRAN3F","created_at":"2026-05-18T12:31:21.493067+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2505.12989","citing_title":"Ultrafast Laser Induces Macroscopic Symmetry-Breaking of Diamond Color Centers","ref_index":24,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML","json":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML.json","graph_json":"https://pith.science/api/pith-number/IBQRAN3F4BFPJKYI44HJTDWFML/graph.json","events_json":"https://pith.science/api/pith-number/IBQRAN3F4BFPJKYI44HJTDWFML/events.json","paper":"https://pith.science/paper/IBQRAN3F"},"agent_actions":{"view_html":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML","download_json":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML.json","view_paper":"https://pith.science/paper/IBQRAN3F","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.08163&json=true","fetch_graph":"https://pith.science/api/pith-number/IBQRAN3F4BFPJKYI44HJTDWFML/graph.json","fetch_events":"https://pith.science/api/pith-number/IBQRAN3F4BFPJKYI44HJTDWFML/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/action/storage_attestation","attest_author":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/action/author_attestation","sign_citation":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/action/citation_signature","submit_replication":"https://pith.science/pith/IBQRAN3F4BFPJKYI44HJTDWFML/action/replication_record"}},"created_at":"2026-05-18T00:03:19.845383+00:00","updated_at":"2026-05-18T00:03:19.845383+00:00"}