{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:FI3JX3BO2P3CSAESPMYNSHIWJS","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4d5d4dcabdf2299c21506107aadd9bb63a9b81f25529ef27f59c68039d86281c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-07T08:41:36Z","title_canon_sha256":"c8fc662e317be7f46d5af8301592d41098006493039ef0fd65d620ff64fdaf45"},"schema_version":"1.0","source":{"id":"1510.01859","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1510.01859","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"arxiv_version","alias_value":"1510.01859v1","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1510.01859","created_at":"2026-05-18T01:22:35Z"},{"alias_kind":"pith_short_12","alias_value":"FI3JX3BO2P3C","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_16","alias_value":"FI3JX3BO2P3CSAES","created_at":"2026-05-18T12:29:19Z"},{"alias_kind":"pith_short_8","alias_value":"FI3JX3BO","created_at":"2026-05-18T12:29:19Z"}],"graph_snapshots":[{"event_id":"sha256:8ff19e30c743510e17345086a963d9627095c3d14bdb45f94f36a997d0208342","target":"graph","created_at":"2026-05-18T01:22:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We investigate the spectral properties of the biphoton state from the cascade emissions of cold atomic ensembles, which composes of a telecommunication photon (signal) followed by an infrared one (idler) via four-wave mixing.\\ With adiabatic conditions for Gaussian driving pulses of width $\\tau$, the spectrum of the biphoton state has the form of a Gaussian that conserves signal and idler photon energies within $\\hbar/\\tau$ modulated by a Lorentzian with a superradiant linewidth.\\ Multiplexing the atomic ensembles with frequency-shifted cascade emissions, we may manipulate and shape the spectr","authors_text":"H. H. Jen, Y.-C. Chen","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-07T08:41:36Z","title":"Spectral Shaping of Cascade Emissions from Multiplexed Cold Atomic Ensembles"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1510.01859","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:9e384e6f0b2d05d3ef18725f670da45d20580314a8bc9da5230bcc3ffb042e77","target":"record","created_at":"2026-05-18T01:22:35Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4d5d4dcabdf2299c21506107aadd9bb63a9b81f25529ef27f59c68039d86281c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-10-07T08:41:36Z","title_canon_sha256":"c8fc662e317be7f46d5af8301592d41098006493039ef0fd65d620ff64fdaf45"},"schema_version":"1.0","source":{"id":"1510.01859","kind":"arxiv","version":1}},"canonical_sha256":"2a369bec2ed3f62900927b30d91d164c9d28ef1c5c6b85c74473126632e856b1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2a369bec2ed3f62900927b30d91d164c9d28ef1c5c6b85c74473126632e856b1","first_computed_at":"2026-05-18T01:22:35.628965Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:22:35.628965Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"so8yWU0vjTFK5rQQxFax4qKiPHL7BRnAHC+Jhq99K5A1d0FHCi7p3ig3Du6VwgCAHp0SQ1ugNXLnR+tNPwkMCw==","signature_status":"signed_v1","signed_at":"2026-05-18T01:22:35.629506Z","signed_message":"canonical_sha256_bytes"},"source_id":"1510.01859","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9e384e6f0b2d05d3ef18725f670da45d20580314a8bc9da5230bcc3ffb042e77","sha256:8ff19e30c743510e17345086a963d9627095c3d14bdb45f94f36a997d0208342"],"state_sha256":"11fc402c26abba56ed830c0c89bee8557eeb264c866cd9939e0cc5e458636726"}