{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:NZNO6JPNBPW7KL6NXXPVPRWVVJ","short_pith_number":"pith:NZNO6JPN","canonical_record":{"source":{"id":"2001.08646","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2020-01-23T16:36:14Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"dc636787425f346e06e8d73751ec77de8cbaa98ee8bf9f26f5e26d95171d227e","abstract_canon_sha256":"257d4ee8fe6fd90cee3c59ef9298e1b28a8470d0c7b45f47eeca537a1708fffb"},"schema_version":"1.0"},"canonical_sha256":"6e5aef25ed0bedf52fcdbddf57c6d5aa47d1a24dd2520f727e1aae367fa23ff5","source":{"kind":"arxiv","id":"2001.08646","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08646","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08646v3","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08646","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"pith_short_12","alias_value":"NZNO6JPNBPW7","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"pith_short_16","alias_value":"NZNO6JPNBPW7KL6N","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"pith_short_8","alias_value":"NZNO6JPN","created_at":"2026-07-05T01:44:37Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:NZNO6JPNBPW7KL6NXXPVPRWVVJ","target":"record","payload":{"canonical_record":{"source":{"id":"2001.08646","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2020-01-23T16:36:14Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"dc636787425f346e06e8d73751ec77de8cbaa98ee8bf9f26f5e26d95171d227e","abstract_canon_sha256":"257d4ee8fe6fd90cee3c59ef9298e1b28a8470d0c7b45f47eeca537a1708fffb"},"schema_version":"1.0"},"canonical_sha256":"6e5aef25ed0bedf52fcdbddf57c6d5aa47d1a24dd2520f727e1aae367fa23ff5","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:44:37.527838Z","signature_b64":"fh9UvQ9zbzzqFgLQnTL3ffHg97ZGkxsqKOuRU0SQMEYIECJGH1HglVJYtuNbz3MRDeZJdpJgryGs1qX2U4auCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"6e5aef25ed0bedf52fcdbddf57c6d5aa47d1a24dd2520f727e1aae367fa23ff5","last_reissued_at":"2026-07-05T01:44:37.527382Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:44:37.527382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2001.08646","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:44:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"O5mTbZcT265hYJ4sWgFyN5kChPG7R/IsD1Y3O7xM4sX3J7FUXM3q35w7e+jAcPhuu0U/B8BGZhAqzg18v1IjCA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T20:47:11.014010Z"},"content_sha256":"ca5ca0377e6667b318bf1dcaf3c1e7206cd0c01b20f97761c29cb95642fd5559","schema_version":"1.0","event_id":"sha256:ca5ca0377e6667b318bf1dcaf3c1e7206cd0c01b20f97761c29cb95642fd5559"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:NZNO6JPNBPW7KL6NXXPVPRWVVJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Zero-point excitation of a circularly moving detector in an atomic condensate and phonon laser dynamical instabilities","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Gabriel Menezes, Iacopo Carusotto, Jamir Marino","submitted_at":"2020-01-23T16:36:14Z","abstract_excerpt":"We study a circularly moving impurity in an atomic condensate for the realisation of superradiance phenomena in tabletop experiments. The impurity is coupled to the density fluctuations of the condensate and, in a quantum field theory language, it serves as an analog of a detector for the quantum phonon field. For sufficiently large rotation speeds, the zero-point fluctuations of the phonon field induce a sizeable excitation rate of the detector even when the condensate is initially at rest in its ground state. For spatially confined condensates and harmonic detectors, such a superradiant emis"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08646","kind":"arxiv","version":3},"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/2001.08646/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:44:37Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"GDT65tYbPyRgs2MqVWtHOn/rdfF0Uyo4tNQvRFKeTT3Y3vMxQQ3Ub0LOJPsF0b1gZgF9NmVDm8kjwJi2NAvRCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T20:47:11.015982Z"},"content_sha256":"c85a9a3c86d7bda7b1dadfc33d39c4408e4b801851332e3927fd3482cf635724","schema_version":"1.0","event_id":"sha256:c85a9a3c86d7bda7b1dadfc33d39c4408e4b801851332e3927fd3482cf635724"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ/bundle.json","state_url":"https://pith.science/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-10T20:47:11Z","links":{"resolver":"https://pith.science/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ","bundle":"https://pith.science/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ/bundle.json","state":"https://pith.science/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/NZNO6JPNBPW7KL6NXXPVPRWVVJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:NZNO6JPNBPW7KL6NXXPVPRWVVJ","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":"257d4ee8fe6fd90cee3c59ef9298e1b28a8470d0c7b45f47eeca537a1708fffb","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2020-01-23T16:36:14Z","title_canon_sha256":"dc636787425f346e06e8d73751ec77de8cbaa98ee8bf9f26f5e26d95171d227e"},"schema_version":"1.0","source":{"id":"2001.08646","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2001.08646","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"arxiv_version","alias_value":"2001.08646v3","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2001.08646","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"pith_short_12","alias_value":"NZNO6JPNBPW7","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"pith_short_16","alias_value":"NZNO6JPNBPW7KL6N","created_at":"2026-07-05T01:44:37Z"},{"alias_kind":"pith_short_8","alias_value":"NZNO6JPN","created_at":"2026-07-05T01:44:37Z"}],"graph_snapshots":[{"event_id":"sha256:c85a9a3c86d7bda7b1dadfc33d39c4408e4b801851332e3927fd3482cf635724","target":"graph","created_at":"2026-07-05T01:44:37Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2001.08646/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We study a circularly moving impurity in an atomic condensate for the realisation of superradiance phenomena in tabletop experiments. The impurity is coupled to the density fluctuations of the condensate and, in a quantum field theory language, it serves as an analog of a detector for the quantum phonon field. For sufficiently large rotation speeds, the zero-point fluctuations of the phonon field induce a sizeable excitation rate of the detector even when the condensate is initially at rest in its ground state. For spatially confined condensates and harmonic detectors, such a superradiant emis","authors_text":"Gabriel Menezes, Iacopo Carusotto, Jamir Marino","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2020-01-23T16:36:14Z","title":"Zero-point excitation of a circularly moving detector in an atomic condensate and phonon laser dynamical instabilities"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2001.08646","kind":"arxiv","version":3},"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:ca5ca0377e6667b318bf1dcaf3c1e7206cd0c01b20f97761c29cb95642fd5559","target":"record","created_at":"2026-07-05T01:44:37Z","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":"257d4ee8fe6fd90cee3c59ef9298e1b28a8470d0c7b45f47eeca537a1708fffb","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2020-01-23T16:36:14Z","title_canon_sha256":"dc636787425f346e06e8d73751ec77de8cbaa98ee8bf9f26f5e26d95171d227e"},"schema_version":"1.0","source":{"id":"2001.08646","kind":"arxiv","version":3}},"canonical_sha256":"6e5aef25ed0bedf52fcdbddf57c6d5aa47d1a24dd2520f727e1aae367fa23ff5","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6e5aef25ed0bedf52fcdbddf57c6d5aa47d1a24dd2520f727e1aae367fa23ff5","first_computed_at":"2026-07-05T01:44:37.527382Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:44:37.527382Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fh9UvQ9zbzzqFgLQnTL3ffHg97ZGkxsqKOuRU0SQMEYIECJGH1HglVJYtuNbz3MRDeZJdpJgryGs1qX2U4auCw==","signature_status":"signed_v1","signed_at":"2026-07-05T01:44:37.527838Z","signed_message":"canonical_sha256_bytes"},"source_id":"2001.08646","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:ca5ca0377e6667b318bf1dcaf3c1e7206cd0c01b20f97761c29cb95642fd5559","sha256:c85a9a3c86d7bda7b1dadfc33d39c4408e4b801851332e3927fd3482cf635724"],"state_sha256":"f3892841d2359f1c0f6a2649e0712b99b21028e79dd6d32ca5dd2ccdd5381696"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"lLQPjfnlvANvVGsQIdDJvsJDDiVYrr65sX0TBGTcSebKvqfWhs8PaDMCKQwy6/1dGb7G6ONzs3IZiVfDaGO8CQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T20:47:11.040938Z","bundle_sha256":"3dc99a6e18e4351280dbb1a98c812a2d63c9a1cd6d8ded22d4ea6b5efe61e21d"}}