{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:7GYLU6ZRZ24PV67ENRFRKTRZES","short_pith_number":"pith:7GYLU6ZR","schema_version":"1.0","canonical_sha256":"f9b0ba7b31ceb8fafbe46c4b154e3924a4cbdb1748b3e542024b5cd935a31a9f","source":{"kind":"arxiv","id":"1806.03334","version":2},"attestation_state":"computed","paper":{"title":"Transverse spin and transverse momentum in structured optical fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Nirmalya Ghosh, Subhasish Dutta Gupta, Sudipta Saha","submitted_at":"2018-06-08T19:43:05Z","abstract_excerpt":"It has been recently recognized that in addition to the conventional longitudinal angular momentum, structured (inhomogeneous) optical fields exhibit helicity-independent transverse spin angular momentum (SAM) and an unusual spin (circular polarization)- dependent transverse momentum, the so-called Belinfante's spin momentum. Such highly nontrivial structure of the momentum and the spin densities in the structured optical fields (e.g., evanescent fields) has led to a number of fundamentally interesting and intricate phenomena, e.g., the quantum spin Hall effect of light and the optical spin-mo"},"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":"1806.03334","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.optics","submitted_at":"2018-06-08T19:43:05Z","cross_cats_sorted":[],"title_canon_sha256":"4cc797163ddc562d9966ee5313429c7ca796ff4d5a028fcda267fc65c9dbda3f","abstract_canon_sha256":"65d55aed4c0c66b3b3c7882199fd6f48029b4d810c79fdc2ab92c13635cfe24b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:54.130712Z","signature_b64":"P9Vfuunr9hardRskTFGZjtmPqQrtX4UjhBxMkbHWQhLV6DaYBNpv0UozjbmzgQ+xn3TIUUJSmQbIx2F9d6m5Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f9b0ba7b31ceb8fafbe46c4b154e3924a4cbdb1748b3e542024b5cd935a31a9f","last_reissued_at":"2026-05-18T00:10:54.129956Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:54.129956Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Transverse spin and transverse momentum in structured optical fields","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"physics.optics","authors_text":"Nirmalya Ghosh, Subhasish Dutta Gupta, Sudipta Saha","submitted_at":"2018-06-08T19:43:05Z","abstract_excerpt":"It has been recently recognized that in addition to the conventional longitudinal angular momentum, structured (inhomogeneous) optical fields exhibit helicity-independent transverse spin angular momentum (SAM) and an unusual spin (circular polarization)- dependent transverse momentum, the so-called Belinfante's spin momentum. Such highly nontrivial structure of the momentum and the spin densities in the structured optical fields (e.g., evanescent fields) has led to a number of fundamentally interesting and intricate phenomena, e.g., the quantum spin Hall effect of light and the optical spin-mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1806.03334","kind":"arxiv","version":2},"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":"1806.03334","created_at":"2026-05-18T00:10:54.130085+00:00"},{"alias_kind":"arxiv_version","alias_value":"1806.03334v2","created_at":"2026-05-18T00:10:54.130085+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1806.03334","created_at":"2026-05-18T00:10:54.130085+00:00"},{"alias_kind":"pith_short_12","alias_value":"7GYLU6ZRZ24P","created_at":"2026-05-18T12:32:11.075285+00:00"},{"alias_kind":"pith_short_16","alias_value":"7GYLU6ZRZ24PV67E","created_at":"2026-05-18T12:32:11.075285+00:00"},{"alias_kind":"pith_short_8","alias_value":"7GYLU6ZR","created_at":"2026-05-18T12:32:11.075285+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2411.14104","citing_title":"A comprehensive study of the Spin-Hall effect of tightly focused linearly polarized light through a stratified medium in optical tweezers","ref_index":6,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES","json":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES.json","graph_json":"https://pith.science/api/pith-number/7GYLU6ZRZ24PV67ENRFRKTRZES/graph.json","events_json":"https://pith.science/api/pith-number/7GYLU6ZRZ24PV67ENRFRKTRZES/events.json","paper":"https://pith.science/paper/7GYLU6ZR"},"agent_actions":{"view_html":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES","download_json":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES.json","view_paper":"https://pith.science/paper/7GYLU6ZR","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1806.03334&json=true","fetch_graph":"https://pith.science/api/pith-number/7GYLU6ZRZ24PV67ENRFRKTRZES/graph.json","fetch_events":"https://pith.science/api/pith-number/7GYLU6ZRZ24PV67ENRFRKTRZES/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES/action/timestamp_anchor","attest_storage":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES/action/storage_attestation","attest_author":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES/action/author_attestation","sign_citation":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES/action/citation_signature","submit_replication":"https://pith.science/pith/7GYLU6ZRZ24PV67ENRFRKTRZES/action/replication_record"}},"created_at":"2026-05-18T00:10:54.130085+00:00","updated_at":"2026-05-18T00:10:54.130085+00:00"}