{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:I67FBTI3VR2REW7NFAQNH2TCC2","short_pith_number":"pith:I67FBTI3","schema_version":"1.0","canonical_sha256":"47be50cd1bac75125bed2820d3ea6216999a07e9b8871c334fb3822749cbfcdc","source":{"kind":"arxiv","id":"1111.3687","version":1},"attestation_state":"computed","paper":{"title":"Spin Coherence During Optical Excitation of a Single NV Center in Diamond","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"primary_cat":"quant-ph","authors_text":"A. L. Falk, D. D. Awschalom, G. D. Fuchs, V. V. Dobrovitski","submitted_at":"2011-11-15T23:15:02Z","abstract_excerpt":"We examine the quantum spin state of a single nitrogen-vacancy (NV) center in diamond at room temperature as it makes a transition from the orbital ground-state (GS) to the orbital excited-state (ES) during non-resonant optical excitation. While the fluorescence read-out of NV-center spins relies on conservation of the longitudinal spin projection during optical excitation, the question of quantum phase preservation has not been examined. Using Ramsey measurements and quantum process tomography, we establish limits on NV center spin decoherence induced during optical excitation. Treating the o"},"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":"1111.3687","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2011-11-15T23:15:02Z","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"title_canon_sha256":"0803b636ae79263009fb3bd884ec1178f78924460245771083e90e1399057426","abstract_canon_sha256":"5d6f7b5314d1c5e7d7ee3f5ea2d4539d0b78e6a96fd9c37ab2f9ab19785e672e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:59:32.652207Z","signature_b64":"Tv9W14PIUQ4p4P4fEmyg9JPO2uDiQjZszebrfGo2m2x9cYbtEjesBH1oMbG2QfmDMjXCpb6eabYpCzzyrNoxBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"47be50cd1bac75125bed2820d3ea6216999a07e9b8871c334fb3822749cbfcdc","last_reissued_at":"2026-05-18T01:59:32.651568Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:59:32.651568Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spin Coherence During Optical Excitation of a Single NV Center in Diamond","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci"],"primary_cat":"quant-ph","authors_text":"A. L. Falk, D. D. Awschalom, G. D. Fuchs, V. V. Dobrovitski","submitted_at":"2011-11-15T23:15:02Z","abstract_excerpt":"We examine the quantum spin state of a single nitrogen-vacancy (NV) center in diamond at room temperature as it makes a transition from the orbital ground-state (GS) to the orbital excited-state (ES) during non-resonant optical excitation. While the fluorescence read-out of NV-center spins relies on conservation of the longitudinal spin projection during optical excitation, the question of quantum phase preservation has not been examined. Using Ramsey measurements and quantum process tomography, we establish limits on NV center spin decoherence induced during optical excitation. Treating the o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1111.3687","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":"1111.3687","created_at":"2026-05-18T01:59:32.651675+00:00"},{"alias_kind":"arxiv_version","alias_value":"1111.3687v1","created_at":"2026-05-18T01:59:32.651675+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1111.3687","created_at":"2026-05-18T01:59:32.651675+00:00"},{"alias_kind":"pith_short_12","alias_value":"I67FBTI3VR2R","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_16","alias_value":"I67FBTI3VR2REW7N","created_at":"2026-05-18T12:26:30.835961+00:00"},{"alias_kind":"pith_short_8","alias_value":"I67FBTI3","created_at":"2026-05-18T12:26:30.835961+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/I67FBTI3VR2REW7NFAQNH2TCC2","json":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2.json","graph_json":"https://pith.science/api/pith-number/I67FBTI3VR2REW7NFAQNH2TCC2/graph.json","events_json":"https://pith.science/api/pith-number/I67FBTI3VR2REW7NFAQNH2TCC2/events.json","paper":"https://pith.science/paper/I67FBTI3"},"agent_actions":{"view_html":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2","download_json":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2.json","view_paper":"https://pith.science/paper/I67FBTI3","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1111.3687&json=true","fetch_graph":"https://pith.science/api/pith-number/I67FBTI3VR2REW7NFAQNH2TCC2/graph.json","fetch_events":"https://pith.science/api/pith-number/I67FBTI3VR2REW7NFAQNH2TCC2/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2/action/timestamp_anchor","attest_storage":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2/action/storage_attestation","attest_author":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2/action/author_attestation","sign_citation":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2/action/citation_signature","submit_replication":"https://pith.science/pith/I67FBTI3VR2REW7NFAQNH2TCC2/action/replication_record"}},"created_at":"2026-05-18T01:59:32.651675+00:00","updated_at":"2026-05-18T01:59:32.651675+00:00"}