{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:UYPQY2ICHTI3446OE6PBOHGLI7","short_pith_number":"pith:UYPQY2IC","canonical_record":{"source":{"id":"1811.05158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T08:20:25Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"2c8c5cfad49007d486f6b7ea077e924cf387bd05ce5936eacebd56fd9edb38cb","abstract_canon_sha256":"faf5f49f1f6043c030331828a49cae8d3021c841e6ae13dab4983fdb28f92631"},"schema_version":"1.0"},"canonical_sha256":"a61f0c69023cd1be73ce279e171ccb47eee27772168ed05c721118774c4cf43d","source":{"kind":"arxiv","id":"1811.05158","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.05158","created_at":"2026-05-17T23:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"1811.05158v1","created_at":"2026-05-17T23:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.05158","created_at":"2026-05-17T23:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"UYPQY2ICHTI3","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UYPQY2ICHTI3446O","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UYPQY2IC","created_at":"2026-05-18T12:32:56Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:UYPQY2ICHTI3446OE6PBOHGLI7","target":"record","payload":{"canonical_record":{"source":{"id":"1811.05158","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T08:20:25Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"2c8c5cfad49007d486f6b7ea077e924cf387bd05ce5936eacebd56fd9edb38cb","abstract_canon_sha256":"faf5f49f1f6043c030331828a49cae8d3021c841e6ae13dab4983fdb28f92631"},"schema_version":"1.0"},"canonical_sha256":"a61f0c69023cd1be73ce279e171ccb47eee27772168ed05c721118774c4cf43d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:58:36.525800Z","signature_b64":"VPD6uyu2KRzcamM+trfAB1NvBuTmrP+52n3/fdGNfSr0yAe6YqUWbmREGAQKSlrOkJ2fIEWyy1mh1Lgbc3g/AA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"a61f0c69023cd1be73ce279e171ccb47eee27772168ed05c721118774c4cf43d","last_reissued_at":"2026-05-17T23:58:36.525110Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:58:36.525110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1811.05158","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Tcy5+ANJotyo+1AKSRTTQ3IMCVpYNCYF7I3+KfoeKYHMXZS9iOqH/I18ND++M3JJKFfMz6zuLMMP+Bi9ZwbjBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T02:16:39.808726Z"},"content_sha256":"0bceb54de5b36b1ecad6aaf639d7b72ac5445a8db5fbbf7008ffef5cde85c0dd","schema_version":"1.0","event_id":"sha256:0bceb54de5b36b1ecad6aaf639d7b72ac5445a8db5fbbf7008ffef5cde85c0dd"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:UYPQY2ICHTI3446OE6PBOHGLI7","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Enhancing nanomechanical squeezing by atomic interactions in a hybrid atom-optomechanical system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"cond-mat.quant-gas","authors_text":"Michael Thorwart, Niklas Mann","submitted_at":"2018-11-13T08:20:25Z","abstract_excerpt":"In a hybrid atom-optomechanical system, the optical coupling of a mechanical mode of a nanomembrane in an optical cavity with a distant interacting atom gas permits highly non-classical quantum many-body states. We show that the mechanical mode can be squeezed by the back-action of internal excitations of the atoms in the gas. A Bogoliubov approach reveals that these internal excitations form a fluctuating environment of quasi-particle excitations for the mechanical mode with a gaped spectral density. Nanomechanical squeezing arises due to quasi-particle excitations in the interacting atom gas"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.05158","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":""},"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":"2026-05-17T23:58:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"9ODd4PkYyhcZfSweUu1JXTOgRQCZyEyBImCiLq5GevJcQ3ZHkhzrnDKPFKV+Wp9YnnaeSA9RCZ1eKzY5+q6+AQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-23T02:16:39.809068Z"},"content_sha256":"9ee6edd987825e9e5a2815bc93f9f7c180465a65ebb6f190241d33b64dcdd01e","schema_version":"1.0","event_id":"sha256:9ee6edd987825e9e5a2815bc93f9f7c180465a65ebb6f190241d33b64dcdd01e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/UYPQY2ICHTI3446OE6PBOHGLI7/bundle.json","state_url":"https://pith.science/pith/UYPQY2ICHTI3446OE6PBOHGLI7/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/UYPQY2ICHTI3446OE6PBOHGLI7/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":"2026-06-23T02:16:39Z","links":{"resolver":"https://pith.science/pith/UYPQY2ICHTI3446OE6PBOHGLI7","bundle":"https://pith.science/pith/UYPQY2ICHTI3446OE6PBOHGLI7/bundle.json","state":"https://pith.science/pith/UYPQY2ICHTI3446OE6PBOHGLI7/state.json","well_known_bundle":"https://pith.science/.well-known/pith/UYPQY2ICHTI3446OE6PBOHGLI7/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:UYPQY2ICHTI3446OE6PBOHGLI7","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":"faf5f49f1f6043c030331828a49cae8d3021c841e6ae13dab4983fdb28f92631","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T08:20:25Z","title_canon_sha256":"2c8c5cfad49007d486f6b7ea077e924cf387bd05ce5936eacebd56fd9edb38cb"},"schema_version":"1.0","source":{"id":"1811.05158","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1811.05158","created_at":"2026-05-17T23:58:36Z"},{"alias_kind":"arxiv_version","alias_value":"1811.05158v1","created_at":"2026-05-17T23:58:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1811.05158","created_at":"2026-05-17T23:58:36Z"},{"alias_kind":"pith_short_12","alias_value":"UYPQY2ICHTI3","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_16","alias_value":"UYPQY2ICHTI3446O","created_at":"2026-05-18T12:32:56Z"},{"alias_kind":"pith_short_8","alias_value":"UYPQY2IC","created_at":"2026-05-18T12:32:56Z"}],"graph_snapshots":[{"event_id":"sha256:9ee6edd987825e9e5a2815bc93f9f7c180465a65ebb6f190241d33b64dcdd01e","target":"graph","created_at":"2026-05-17T23:58:36Z","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":"In a hybrid atom-optomechanical system, the optical coupling of a mechanical mode of a nanomembrane in an optical cavity with a distant interacting atom gas permits highly non-classical quantum many-body states. We show that the mechanical mode can be squeezed by the back-action of internal excitations of the atoms in the gas. A Bogoliubov approach reveals that these internal excitations form a fluctuating environment of quasi-particle excitations for the mechanical mode with a gaped spectral density. Nanomechanical squeezing arises due to quasi-particle excitations in the interacting atom gas","authors_text":"Michael Thorwart, Niklas Mann","cross_cats":["quant-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T08:20:25Z","title":"Enhancing nanomechanical squeezing by atomic interactions in a hybrid atom-optomechanical system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1811.05158","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":"sha256:0bceb54de5b36b1ecad6aaf639d7b72ac5445a8db5fbbf7008ffef5cde85c0dd","target":"record","created_at":"2026-05-17T23:58:36Z","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":"faf5f49f1f6043c030331828a49cae8d3021c841e6ae13dab4983fdb28f92631","cross_cats_sorted":["quant-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.quant-gas","submitted_at":"2018-11-13T08:20:25Z","title_canon_sha256":"2c8c5cfad49007d486f6b7ea077e924cf387bd05ce5936eacebd56fd9edb38cb"},"schema_version":"1.0","source":{"id":"1811.05158","kind":"arxiv","version":1}},"canonical_sha256":"a61f0c69023cd1be73ce279e171ccb47eee27772168ed05c721118774c4cf43d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"a61f0c69023cd1be73ce279e171ccb47eee27772168ed05c721118774c4cf43d","first_computed_at":"2026-05-17T23:58:36.525110Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:36.525110Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VPD6uyu2KRzcamM+trfAB1NvBuTmrP+52n3/fdGNfSr0yAe6YqUWbmREGAQKSlrOkJ2fIEWyy1mh1Lgbc3g/AA==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:36.525800Z","signed_message":"canonical_sha256_bytes"},"source_id":"1811.05158","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0bceb54de5b36b1ecad6aaf639d7b72ac5445a8db5fbbf7008ffef5cde85c0dd","sha256:9ee6edd987825e9e5a2815bc93f9f7c180465a65ebb6f190241d33b64dcdd01e"],"state_sha256":"d17fd60ad5fcc561dd5eae2449baf95158e8eaf4d898ca53eb867821d8698972"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+KiOcCx8U4AWBidEnNjGJsCarXu7B50OrekVOFaaXnSwe3cBjEvTHn1g6Von4u81p2APvntE5xv0mkp9UQ9qDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-23T02:16:39.810926Z","bundle_sha256":"bf76b1f9abc31095e0013ac63fd2aa5e9fe945dc04a0a2a7fb99f75d7d7f3b59"}}