{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:TSQMVCWTS7PGBW3K4CHHZCWFSF","short_pith_number":"pith:TSQMVCWT","schema_version":"1.0","canonical_sha256":"9ca0ca8ad397de60db6ae08e7c8ac5916103ff7c6d136c015bc5bc7557a0f0e3","source":{"kind":"arxiv","id":"1501.05986","version":1},"attestation_state":"computed","paper":{"title":"Probing the topological charge of a vortex beam with dynamic angular double slits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Dongxu Chen, Dongzhi Fu, Fuli Li, Hong Gao, Pei Zhang, Ruifeng Liu, Yunlong Wang","submitted_at":"2015-01-24T00:29:07Z","abstract_excerpt":"When a vortex beam with the spiral phase structure passes through a dynamic angular double slits (ADS), the interference pattern changes alternatively between destructive and constructive at the angular bisector direction of the ADS due to their phase difference. Based on this property, we experimentally demonstrate a simple method, which can precisely and efficiently determine the topological charge of vortex beams. What is more, this scheme allows determining both the modulus and sign of the topological charge of vortex beams simultaneously."},"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":"1501.05986","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2015-01-24T00:29:07Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"145d9371f6193ac17e1bc45cc60efdbd081817b1dc3c915cf573e497fbf74420","abstract_canon_sha256":"491332ba452bfde1a34d9236a70948818305773eb3f3c62de9231fe353f7c0ba"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:41:08.919558Z","signature_b64":"w6gQ+Dv6kvgeUbMGq3zAq2DUk7yab1t7ENOJweLuL3lZ9fa9RmhRgZysvA8Sm21nlJmcKK3SVz+znXOYQq1vCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9ca0ca8ad397de60db6ae08e7c8ac5916103ff7c6d136c015bc5bc7557a0f0e3","last_reissued_at":"2026-05-18T01:41:08.918867Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:41:08.918867Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Probing the topological charge of a vortex beam with dynamic angular double slits","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"physics.optics","authors_text":"Dongxu Chen, Dongzhi Fu, Fuli Li, Hong Gao, Pei Zhang, Ruifeng Liu, Yunlong Wang","submitted_at":"2015-01-24T00:29:07Z","abstract_excerpt":"When a vortex beam with the spiral phase structure passes through a dynamic angular double slits (ADS), the interference pattern changes alternatively between destructive and constructive at the angular bisector direction of the ADS due to their phase difference. Based on this property, we experimentally demonstrate a simple method, which can precisely and efficiently determine the topological charge of vortex beams. What is more, this scheme allows determining both the modulus and sign of the topological charge of vortex beams simultaneously."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1501.05986","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":"1501.05986","created_at":"2026-05-18T01:41:08.918973+00:00"},{"alias_kind":"arxiv_version","alias_value":"1501.05986v1","created_at":"2026-05-18T01:41:08.918973+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1501.05986","created_at":"2026-05-18T01:41:08.918973+00:00"},{"alias_kind":"pith_short_12","alias_value":"TSQMVCWTS7PG","created_at":"2026-05-18T12:29:42.218222+00:00"},{"alias_kind":"pith_short_16","alias_value":"TSQMVCWTS7PGBW3K","created_at":"2026-05-18T12:29:42.218222+00:00"},{"alias_kind":"pith_short_8","alias_value":"TSQMVCWT","created_at":"2026-05-18T12:29:42.218222+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/TSQMVCWTS7PGBW3K4CHHZCWFSF","json":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF.json","graph_json":"https://pith.science/api/pith-number/TSQMVCWTS7PGBW3K4CHHZCWFSF/graph.json","events_json":"https://pith.science/api/pith-number/TSQMVCWTS7PGBW3K4CHHZCWFSF/events.json","paper":"https://pith.science/paper/TSQMVCWT"},"agent_actions":{"view_html":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF","download_json":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF.json","view_paper":"https://pith.science/paper/TSQMVCWT","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1501.05986&json=true","fetch_graph":"https://pith.science/api/pith-number/TSQMVCWTS7PGBW3K4CHHZCWFSF/graph.json","fetch_events":"https://pith.science/api/pith-number/TSQMVCWTS7PGBW3K4CHHZCWFSF/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF/action/storage_attestation","attest_author":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF/action/author_attestation","sign_citation":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF/action/citation_signature","submit_replication":"https://pith.science/pith/TSQMVCWTS7PGBW3K4CHHZCWFSF/action/replication_record"}},"created_at":"2026-05-18T01:41:08.918973+00:00","updated_at":"2026-05-18T01:41:08.918973+00:00"}