{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2021:WMR5Y3DSMBEYRHIOQO56O4QRAH","short_pith_number":"pith:WMR5Y3DS","schema_version":"1.0","canonical_sha256":"b323dc6c726049889d0e83bbe7721101e8a162426c8aca89f61e842e36e5e938","source":{"kind":"arxiv","id":"2106.14923","version":2},"attestation_state":"computed","paper":{"title":"Evolution of confined quantum scalar fields in curved spacetime. Part II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Ana L. B\\'aez-Camargo, Ivette Fuentes, Luis C. Barbado","submitted_at":"2021-06-28T18:05:50Z","abstract_excerpt":"We develop a method for computing the Bogoliubov transformation experienced by a confined quantum scalar field in a globally hyperbolic spacetime, due to the changes in the geometry and/or the confining boundaries. The method constructs a basis of solutions to the Klein-Gordon equation associated to each compact Cauchy hypersurface of constant time. It then provides a differential equation for the linear transformation between bases at different times. The transformation can be interpreted physically as a Bogoliubov transformation when it connects two regions in which a time symmetry allows fo"},"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":"2106.14923","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-06-28T18:05:50Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"0082de24f46fe5174bfd605afc1ae2308273a5c960f0e2d049a54c5ba2f66114","abstract_canon_sha256":"968a063530d19e2fecdacdc27c5cc309d3a272e64247dd18ca5f7ef36ae6e109"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:28:20.034189Z","signature_b64":"2HdqFL+M76pWwob1HQECsElc6mI8klUMXMx7u5O6VNXre8z2BBHOuMU75uWZab+XTP2oK68wLEaN0cYAEFRwCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b323dc6c726049889d0e83bbe7721101e8a162426c8aca89f61e842e36e5e938","last_reissued_at":"2026-07-05T03:28:20.033746Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:28:20.033746Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Evolution of confined quantum scalar fields in curved spacetime. Part II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"quant-ph","authors_text":"Ana L. B\\'aez-Camargo, Ivette Fuentes, Luis C. Barbado","submitted_at":"2021-06-28T18:05:50Z","abstract_excerpt":"We develop a method for computing the Bogoliubov transformation experienced by a confined quantum scalar field in a globally hyperbolic spacetime, due to the changes in the geometry and/or the confining boundaries. The method constructs a basis of solutions to the Klein-Gordon equation associated to each compact Cauchy hypersurface of constant time. It then provides a differential equation for the linear transformation between bases at different times. The transformation can be interpreted physically as a Bogoliubov transformation when it connects two regions in which a time symmetry allows fo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.14923","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.14923/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":"2106.14923","created_at":"2026-07-05T03:28:20.033803+00:00"},{"alias_kind":"arxiv_version","alias_value":"2106.14923v2","created_at":"2026-07-05T03:28:20.033803+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.14923","created_at":"2026-07-05T03:28:20.033803+00:00"},{"alias_kind":"pith_short_12","alias_value":"WMR5Y3DSMBEY","created_at":"2026-07-05T03:28:20.033803+00:00"},{"alias_kind":"pith_short_16","alias_value":"WMR5Y3DSMBEYRHIO","created_at":"2026-07-05T03:28:20.033803+00:00"},{"alias_kind":"pith_short_8","alias_value":"WMR5Y3DS","created_at":"2026-07-05T03:28:20.033803+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2504.16784","citing_title":"Particles in finite volumes and a toy model of decaying neutrons","ref_index":19,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH","json":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH.json","graph_json":"https://pith.science/api/pith-number/WMR5Y3DSMBEYRHIOQO56O4QRAH/graph.json","events_json":"https://pith.science/api/pith-number/WMR5Y3DSMBEYRHIOQO56O4QRAH/events.json","paper":"https://pith.science/paper/WMR5Y3DS"},"agent_actions":{"view_html":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH","download_json":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH.json","view_paper":"https://pith.science/paper/WMR5Y3DS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2106.14923&json=true","fetch_graph":"https://pith.science/api/pith-number/WMR5Y3DSMBEYRHIOQO56O4QRAH/graph.json","fetch_events":"https://pith.science/api/pith-number/WMR5Y3DSMBEYRHIOQO56O4QRAH/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH/action/storage_attestation","attest_author":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH/action/author_attestation","sign_citation":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH/action/citation_signature","submit_replication":"https://pith.science/pith/WMR5Y3DSMBEYRHIOQO56O4QRAH/action/replication_record"}},"created_at":"2026-07-05T03:28:20.033803+00:00","updated_at":"2026-07-05T03:28:20.033803+00:00"}