{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:DSYETGAMDXWGBJSFWYQVJDWYNU","short_pith_number":"pith:DSYETGAM","schema_version":"1.0","canonical_sha256":"1cb049980c1dec60a645b621548ed86d20ae16b89075c4f8d7821216770fe74d","source":{"kind":"arxiv","id":"1802.06906","version":2},"attestation_state":"computed","paper":{"title":"Coherent merging of counter-propagating exciton-polariton superfluids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Alberto Bramati, Elisabeth Giacobino, Emiliano Cancellieri, Paul Robin, Quentin Glorieux, Simon Pigeon, Thomas Boulier","submitted_at":"2018-02-19T23:30:19Z","abstract_excerpt":"We report the formation of a macroscopic coherent state emerging from colliding polariton fluids. Four lasers with random relative phases, arranged in a square, pump resonantly a planar microcavity, creating four coherent polariton fluids propagating toward each other. When the density (interactions) increases, the four fluids synchronise and the topological excitations (vortex or soliton) disappear to form a single superfluid."},"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":"1802.06906","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-02-19T23:30:19Z","cross_cats_sorted":["cond-mat.other","quant-ph"],"title_canon_sha256":"0623754a4d2d6a45fbee6a327d53a56a8eb059cc6336f50ef49f1a29d96ccc9c","abstract_canon_sha256":"0f4a7d1cc40c44a2e67f7d7e2e6c6de9d0d03b7644ade202b76d5e53c6a81b36"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:10:38.429669Z","signature_b64":"E0JQ7KoHMZiJb3bJUkazYxb0UYqT0Skgq3IXgSSulpevivh2qbRzazzJMKGMb+3yEON11ax8bgJkQaw0iqI2Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1cb049980c1dec60a645b621548ed86d20ae16b89075c4f8d7821216770fe74d","last_reissued_at":"2026-05-18T00:10:38.429261Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:10:38.429261Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Coherent merging of counter-propagating exciton-polariton superfluids","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.other","quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Alberto Bramati, Elisabeth Giacobino, Emiliano Cancellieri, Paul Robin, Quentin Glorieux, Simon Pigeon, Thomas Boulier","submitted_at":"2018-02-19T23:30:19Z","abstract_excerpt":"We report the formation of a macroscopic coherent state emerging from colliding polariton fluids. Four lasers with random relative phases, arranged in a square, pump resonantly a planar microcavity, creating four coherent polariton fluids propagating toward each other. When the density (interactions) increases, the four fluids synchronise and the topological excitations (vortex or soliton) disappear to form a single superfluid."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1802.06906","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":"1802.06906","created_at":"2026-05-18T00:10:38.429323+00:00"},{"alias_kind":"arxiv_version","alias_value":"1802.06906v2","created_at":"2026-05-18T00:10:38.429323+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1802.06906","created_at":"2026-05-18T00:10:38.429323+00:00"},{"alias_kind":"pith_short_12","alias_value":"DSYETGAMDXWG","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_16","alias_value":"DSYETGAMDXWGBJSF","created_at":"2026-05-18T12:32:19.392346+00:00"},{"alias_kind":"pith_short_8","alias_value":"DSYETGAM","created_at":"2026-05-18T12:32:19.392346+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/DSYETGAMDXWGBJSFWYQVJDWYNU","json":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU.json","graph_json":"https://pith.science/api/pith-number/DSYETGAMDXWGBJSFWYQVJDWYNU/graph.json","events_json":"https://pith.science/api/pith-number/DSYETGAMDXWGBJSFWYQVJDWYNU/events.json","paper":"https://pith.science/paper/DSYETGAM"},"agent_actions":{"view_html":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU","download_json":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU.json","view_paper":"https://pith.science/paper/DSYETGAM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1802.06906&json=true","fetch_graph":"https://pith.science/api/pith-number/DSYETGAMDXWGBJSFWYQVJDWYNU/graph.json","fetch_events":"https://pith.science/api/pith-number/DSYETGAMDXWGBJSFWYQVJDWYNU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU/action/storage_attestation","attest_author":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU/action/author_attestation","sign_citation":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU/action/citation_signature","submit_replication":"https://pith.science/pith/DSYETGAMDXWGBJSFWYQVJDWYNU/action/replication_record"}},"created_at":"2026-05-18T00:10:38.429323+00:00","updated_at":"2026-05-18T00:10:38.429323+00:00"}