{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:GO4BBBYSJEM6XQJUCOWKDMCR7O","short_pith_number":"pith:GO4BBBYS","schema_version":"1.0","canonical_sha256":"33b81087124919ebc13413aca1b051fbb512aa786e80f82a24db6722cc09b4d9","source":{"kind":"arxiv","id":"1702.06888","version":1},"attestation_state":"computed","paper":{"title":"Erasing the orbital angular momentum information of a photon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Andrew Forbes, Bienvenu Ndagano, Isaac Nape","submitted_at":"2017-02-21T15:53:50Z","abstract_excerpt":"Quantum erasers with paths in the form of physical slits have been studied extensively and proven instrumental in probing wave-particle duality in quantum mechanics. Here we replace physical paths (slits) with abstract paths of orbital angular momentum (OAM). Using spin-orbit hybrid entanglement of photons we show that the OAM content of a photon can be erased with a complimentary polarization projection of one of the entangled pair. The result is the (dis)appearance of azimuthal fringes based on whether the \\which-OAM\" information was erased. We extend this concept to a delayed measurement sc"},"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":"1702.06888","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-02-21T15:53:50Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"1641ef0f20212d359e83188e8079f1b75a40e84486ae2b988c4e90143a953d31","abstract_canon_sha256":"58576f62095cafb3f00593e7b6cb1183c4a1d58f4bab4a41df2f35252b0e1bf0"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:43:26.595957Z","signature_b64":"9LbWtjEmfN65mRRFbxxWcJ1BWgsA3UAWYVKIHzatAtHb4zdbh7UrIQiAoKJ/HFtYcr3WLTCzkK9gjnYSouHNAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"33b81087124919ebc13413aca1b051fbb512aa786e80f82a24db6722cc09b4d9","last_reissued_at":"2026-05-18T00:43:26.595456Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:43:26.595456Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Erasing the orbital angular momentum information of a photon","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"quant-ph","authors_text":"Andrew Forbes, Bienvenu Ndagano, Isaac Nape","submitted_at":"2017-02-21T15:53:50Z","abstract_excerpt":"Quantum erasers with paths in the form of physical slits have been studied extensively and proven instrumental in probing wave-particle duality in quantum mechanics. Here we replace physical paths (slits) with abstract paths of orbital angular momentum (OAM). Using spin-orbit hybrid entanglement of photons we show that the OAM content of a photon can be erased with a complimentary polarization projection of one of the entangled pair. The result is the (dis)appearance of azimuthal fringes based on whether the \\which-OAM\" information was erased. We extend this concept to a delayed measurement sc"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.06888","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":"1702.06888","created_at":"2026-05-18T00:43:26.595528+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.06888v1","created_at":"2026-05-18T00:43:26.595528+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.06888","created_at":"2026-05-18T00:43:26.595528+00:00"},{"alias_kind":"pith_short_12","alias_value":"GO4BBBYSJEM6","created_at":"2026-05-18T12:31:18.294218+00:00"},{"alias_kind":"pith_short_16","alias_value":"GO4BBBYSJEM6XQJU","created_at":"2026-05-18T12:31:18.294218+00:00"},{"alias_kind":"pith_short_8","alias_value":"GO4BBBYS","created_at":"2026-05-18T12:31:18.294218+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/GO4BBBYSJEM6XQJUCOWKDMCR7O","json":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O.json","graph_json":"https://pith.science/api/pith-number/GO4BBBYSJEM6XQJUCOWKDMCR7O/graph.json","events_json":"https://pith.science/api/pith-number/GO4BBBYSJEM6XQJUCOWKDMCR7O/events.json","paper":"https://pith.science/paper/GO4BBBYS"},"agent_actions":{"view_html":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O","download_json":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O.json","view_paper":"https://pith.science/paper/GO4BBBYS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.06888&json=true","fetch_graph":"https://pith.science/api/pith-number/GO4BBBYSJEM6XQJUCOWKDMCR7O/graph.json","fetch_events":"https://pith.science/api/pith-number/GO4BBBYSJEM6XQJUCOWKDMCR7O/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O/action/timestamp_anchor","attest_storage":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O/action/storage_attestation","attest_author":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O/action/author_attestation","sign_citation":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O/action/citation_signature","submit_replication":"https://pith.science/pith/GO4BBBYSJEM6XQJUCOWKDMCR7O/action/replication_record"}},"created_at":"2026-05-18T00:43:26.595528+00:00","updated_at":"2026-05-18T00:43:26.595528+00:00"}