{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:LFRLHJWAUMLKU7CAKT73UGHRB6","short_pith_number":"pith:LFRLHJWA","schema_version":"1.0","canonical_sha256":"5962b3a6c0a316aa7c4054ffba18f10f9636e849be58593c98429fb276253676","source":{"kind":"arxiv","id":"2004.07327","version":1},"attestation_state":"computed","paper":{"title":"Astronomical masers and Dicke's superradiance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"astro-ph.GA","authors_text":"Fereshteh Rajabi, Martin Houde","submitted_at":"2020-04-15T20:31:31Z","abstract_excerpt":"We consider the radiation properties and processes of a gas with a population inversion using the formalism based on the Maxwell-Bloch equations. We focus on the maser action and Dicke's superradiance to establish their relationship in the overall radiation process during the temporal evolution of the system as a function of position. We show that the maser action and superradiance are not competing phenomena but are rather complementary, and define two distinct limits for the intensity of radiation. Masers characterise the quasi-steady state limit, when the population inversion density and th"},"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":"2004.07327","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2020-04-15T20:31:31Z","cross_cats_sorted":["physics.optics"],"title_canon_sha256":"c1e6d9e556220ca14a0b180993f52b1eafa906333e41f6b9bf1e34e2c5be7c35","abstract_canon_sha256":"6a7c0c89501f2fb6c883e6887cb125fd75f968ea1c355c221920ea6e4508ff96"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:00:43.323693Z","signature_b64":"krVfrHH7V8m6De23I5ZYB89v9T1h7MXL5z7a3kEZ3JWTGpxg9sxcH4kyR18c6ng73A6NJKsU+XQAg8HhFB2KBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5962b3a6c0a316aa7c4054ffba18f10f9636e849be58593c98429fb276253676","last_reissued_at":"2026-07-05T01:00:43.323129Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:00:43.323129Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Astronomical masers and Dicke's superradiance","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.optics"],"primary_cat":"astro-ph.GA","authors_text":"Fereshteh Rajabi, Martin Houde","submitted_at":"2020-04-15T20:31:31Z","abstract_excerpt":"We consider the radiation properties and processes of a gas with a population inversion using the formalism based on the Maxwell-Bloch equations. We focus on the maser action and Dicke's superradiance to establish their relationship in the overall radiation process during the temporal evolution of the system as a function of position. We show that the maser action and superradiance are not competing phenomena but are rather complementary, and define two distinct limits for the intensity of radiation. Masers characterise the quasi-steady state limit, when the population inversion density and th"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.07327","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.07327/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2004.07327","created_at":"2026-07-05T01:00:43.323194+00:00"},{"alias_kind":"arxiv_version","alias_value":"2004.07327v1","created_at":"2026-07-05T01:00:43.323194+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2004.07327","created_at":"2026-07-05T01:00:43.323194+00:00"},{"alias_kind":"pith_short_12","alias_value":"LFRLHJWAUMLK","created_at":"2026-07-05T01:00:43.323194+00:00"},{"alias_kind":"pith_short_16","alias_value":"LFRLHJWAUMLKU7CA","created_at":"2026-07-05T01:00:43.323194+00:00"},{"alias_kind":"pith_short_8","alias_value":"LFRLHJWA","created_at":"2026-07-05T01:00:43.323194+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/LFRLHJWAUMLKU7CAKT73UGHRB6","json":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6.json","graph_json":"https://pith.science/api/pith-number/LFRLHJWAUMLKU7CAKT73UGHRB6/graph.json","events_json":"https://pith.science/api/pith-number/LFRLHJWAUMLKU7CAKT73UGHRB6/events.json","paper":"https://pith.science/paper/LFRLHJWA"},"agent_actions":{"view_html":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6","download_json":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6.json","view_paper":"https://pith.science/paper/LFRLHJWA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2004.07327&json=true","fetch_graph":"https://pith.science/api/pith-number/LFRLHJWAUMLKU7CAKT73UGHRB6/graph.json","fetch_events":"https://pith.science/api/pith-number/LFRLHJWAUMLKU7CAKT73UGHRB6/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6/action/storage_attestation","attest_author":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6/action/author_attestation","sign_citation":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6/action/citation_signature","submit_replication":"https://pith.science/pith/LFRLHJWAUMLKU7CAKT73UGHRB6/action/replication_record"}},"created_at":"2026-07-05T01:00:43.323194+00:00","updated_at":"2026-07-05T01:00:43.323194+00:00"}