{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:PBWRPP6J5FW2AEPZ2MZWM5NFYK","short_pith_number":"pith:PBWRPP6J","schema_version":"1.0","canonical_sha256":"786d17bfc9e96da011f9d3336675a5c2bdc73594fc5b7edf6feaddee6f377066","source":{"kind":"arxiv","id":"1904.04135","version":2},"attestation_state":"computed","paper":{"title":"Thermal counting statistics in an atomic two-mode squeezed vacuum state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Aspect, A. Dareau, C. I. Westbrook, D. Boiron, M. Cheneau, M. Perrier, P. Dussarrat, Z. Amodjee","submitted_at":"2019-04-08T15:42:36Z","abstract_excerpt":"We measure the population distribution in one of the atomic twin beams generated by four-wave mixing in an optical lattice.\n  Although the produced two-mode squeezed vacuum state is pure, each individual mode is described as a statistical mixture.\n  We confirm the prediction that the particle number follows an exponential distribution when only one spatio-temporal mode is selected.\n  We also show that this distribution accounts well for the contrast of an atomic Hong--Ou--Mandel experiment.\n  These experiments constitute an important validation of our twin beam source in view of a future test "},"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":"1904.04135","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2019-04-08T15:42:36Z","cross_cats_sorted":[],"title_canon_sha256":"8dc2a24465cd1a05a0575474912d13b2d743e6cf6b741751496368e2b5fb1a52","abstract_canon_sha256":"6ebf73a6fcbb668758fa669235ab031cacc359741a0a5910d185907c3481f79b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:41:42.428823Z","signature_b64":"A2iWDs/Go2hqF76gJiFhi2i7TLzNce3GOv7dJfatXycwVY19k9vb1xjrTLkSe30fyBB++L88tWGo0SHGsr6QDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"786d17bfc9e96da011f9d3336675a5c2bdc73594fc5b7edf6feaddee6f377066","last_reissued_at":"2026-05-17T23:41:42.428370Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:41:42.428370Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Thermal counting statistics in an atomic two-mode squeezed vacuum state","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"quant-ph","authors_text":"A. Aspect, A. Dareau, C. I. Westbrook, D. Boiron, M. Cheneau, M. Perrier, P. Dussarrat, Z. Amodjee","submitted_at":"2019-04-08T15:42:36Z","abstract_excerpt":"We measure the population distribution in one of the atomic twin beams generated by four-wave mixing in an optical lattice.\n  Although the produced two-mode squeezed vacuum state is pure, each individual mode is described as a statistical mixture.\n  We confirm the prediction that the particle number follows an exponential distribution when only one spatio-temporal mode is selected.\n  We also show that this distribution accounts well for the contrast of an atomic Hong--Ou--Mandel experiment.\n  These experiments constitute an important validation of our twin beam source in view of a future test "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1904.04135","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":"1904.04135","created_at":"2026-05-17T23:41:42.428443+00:00"},{"alias_kind":"arxiv_version","alias_value":"1904.04135v2","created_at":"2026-05-17T23:41:42.428443+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1904.04135","created_at":"2026-05-17T23:41:42.428443+00:00"},{"alias_kind":"pith_short_12","alias_value":"PBWRPP6J5FW2","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_16","alias_value":"PBWRPP6J5FW2AEPZ","created_at":"2026-05-18T12:33:24.271573+00:00"},{"alias_kind":"pith_short_8","alias_value":"PBWRPP6J","created_at":"2026-05-18T12:33:24.271573+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/PBWRPP6J5FW2AEPZ2MZWM5NFYK","json":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK.json","graph_json":"https://pith.science/api/pith-number/PBWRPP6J5FW2AEPZ2MZWM5NFYK/graph.json","events_json":"https://pith.science/api/pith-number/PBWRPP6J5FW2AEPZ2MZWM5NFYK/events.json","paper":"https://pith.science/paper/PBWRPP6J"},"agent_actions":{"view_html":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK","download_json":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK.json","view_paper":"https://pith.science/paper/PBWRPP6J","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1904.04135&json=true","fetch_graph":"https://pith.science/api/pith-number/PBWRPP6J5FW2AEPZ2MZWM5NFYK/graph.json","fetch_events":"https://pith.science/api/pith-number/PBWRPP6J5FW2AEPZ2MZWM5NFYK/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK/action/timestamp_anchor","attest_storage":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK/action/storage_attestation","attest_author":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK/action/author_attestation","sign_citation":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK/action/citation_signature","submit_replication":"https://pith.science/pith/PBWRPP6J5FW2AEPZ2MZWM5NFYK/action/replication_record"}},"created_at":"2026-05-17T23:41:42.428443+00:00","updated_at":"2026-05-17T23:41:42.428443+00:00"}