{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2015:D22ZRCY6IBCUZ4QKPXDTMUATV3","short_pith_number":"pith:D22ZRCY6","canonical_record":{"source":{"id":"1502.04112","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-13T20:43:29Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"cd275f4da943cb617fd486576c7b829261ea3d874229d86dc9e5e9ac2ba82f2a","abstract_canon_sha256":"d6c376936dca1bf9254ccb0c4ad63b47320836f4a9dc3737eb5a5653f7329a34"},"schema_version":"1.0"},"canonical_sha256":"1eb5988b1e40454cf20a7dc7365013aec0abe1e21c525d68e66a2384cc0ff8a3","source":{"kind":"arxiv","id":"1502.04112","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.04112","created_at":"2026-05-18T01:46:21Z"},{"alias_kind":"arxiv_version","alias_value":"1502.04112v1","created_at":"2026-05-18T01:46:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.04112","created_at":"2026-05-18T01:46:21Z"},{"alias_kind":"pith_short_12","alias_value":"D22ZRCY6IBCU","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"D22ZRCY6IBCUZ4QK","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"D22ZRCY6","created_at":"2026-05-18T12:29:17Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2015:D22ZRCY6IBCUZ4QKPXDTMUATV3","target":"record","payload":{"canonical_record":{"source":{"id":"1502.04112","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-13T20:43:29Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"cd275f4da943cb617fd486576c7b829261ea3d874229d86dc9e5e9ac2ba82f2a","abstract_canon_sha256":"d6c376936dca1bf9254ccb0c4ad63b47320836f4a9dc3737eb5a5653f7329a34"},"schema_version":"1.0"},"canonical_sha256":"1eb5988b1e40454cf20a7dc7365013aec0abe1e21c525d68e66a2384cc0ff8a3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:46:21.878821Z","signature_b64":"AzKgGeInAq7xjzBYrUN9s5KAsCvae89g51oCew0lZDcGR5nDcWDq44pnfxVnfRRTIYZbWo6r5Z26mTcOWHI3Ag==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1eb5988b1e40454cf20a7dc7365013aec0abe1e21c525d68e66a2384cc0ff8a3","last_reissued_at":"2026-05-18T01:46:21.878143Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:46:21.878143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1502.04112","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":"2026-05-18T01:46:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"sFSSZkjjZy0DD1DvuXceWWaDaglThoJDiLZ0u9bOb4u+Wgoi4c4WExxuAS6JuIKcVpSsY5R0PdTHCt/5OxfbAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:29:07.658542Z"},"content_sha256":"807e2cb6cf875fbb402505c6946869fed128af3ebfd5e50fd0f28189851b8565","schema_version":"1.0","event_id":"sha256:807e2cb6cf875fbb402505c6946869fed128af3ebfd5e50fd0f28189851b8565"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2015:D22ZRCY6IBCUZ4QKPXDTMUATV3","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Sub-Poissonian Phonon Lasing in Three-Mode Optomechanics","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"quant-ph","authors_text":"Klemens Hammerer, Niels L\\\"orch","submitted_at":"2015-02-13T20:43:29Z","abstract_excerpt":"We propose to use the resonant enhancement of the parametric instability in an optomechanical system of two optical modes coupled to a mechanical oscillator to prepare mechanical states with sub-Poissonian phonon statistics. Strong single photon coupling is not required. The requirements regarding sideband resolution, circulating cavity power and environmental temperature are in reach with state of the art parameters of optomechanical crystals. Phonon antibunching can be verfied in a Hanburry-Brown-Twiss measurement on the output field of the optomechanical cavity."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04112","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":"2026-05-18T01:46:21Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"1saGEvQDnO+r+wmiK8TZmBGxfU18A9KSNLRUeSbzrKh9qHGgFvvrc25wc87Fow1RO6WZOZY24Uj56wghVkHRAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T14:29:07.659237Z"},"content_sha256":"f900a165af6c51ff874215a546340275d4b85984e0c1940e0f5c8b1397ffc35c","schema_version":"1.0","event_id":"sha256:f900a165af6c51ff874215a546340275d4b85984e0c1940e0f5c8b1397ffc35c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3/bundle.json","state_url":"https://pith.science/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3/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":"2026-05-30T14:29:07Z","links":{"resolver":"https://pith.science/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3","bundle":"https://pith.science/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3/bundle.json","state":"https://pith.science/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3/state.json","well_known_bundle":"https://pith.science/.well-known/pith/D22ZRCY6IBCUZ4QKPXDTMUATV3/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:D22ZRCY6IBCUZ4QKPXDTMUATV3","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":"d6c376936dca1bf9254ccb0c4ad63b47320836f4a9dc3737eb5a5653f7329a34","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-13T20:43:29Z","title_canon_sha256":"cd275f4da943cb617fd486576c7b829261ea3d874229d86dc9e5e9ac2ba82f2a"},"schema_version":"1.0","source":{"id":"1502.04112","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1502.04112","created_at":"2026-05-18T01:46:21Z"},{"alias_kind":"arxiv_version","alias_value":"1502.04112v1","created_at":"2026-05-18T01:46:21Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1502.04112","created_at":"2026-05-18T01:46:21Z"},{"alias_kind":"pith_short_12","alias_value":"D22ZRCY6IBCU","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_16","alias_value":"D22ZRCY6IBCUZ4QK","created_at":"2026-05-18T12:29:17Z"},{"alias_kind":"pith_short_8","alias_value":"D22ZRCY6","created_at":"2026-05-18T12:29:17Z"}],"graph_snapshots":[{"event_id":"sha256:f900a165af6c51ff874215a546340275d4b85984e0c1940e0f5c8b1397ffc35c","target":"graph","created_at":"2026-05-18T01:46:21Z","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 propose to use the resonant enhancement of the parametric instability in an optomechanical system of two optical modes coupled to a mechanical oscillator to prepare mechanical states with sub-Poissonian phonon statistics. Strong single photon coupling is not required. The requirements regarding sideband resolution, circulating cavity power and environmental temperature are in reach with state of the art parameters of optomechanical crystals. Phonon antibunching can be verfied in a Hanburry-Brown-Twiss measurement on the output field of the optomechanical cavity.","authors_text":"Klemens Hammerer, Niels L\\\"orch","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-13T20:43:29Z","title":"Sub-Poissonian Phonon Lasing in Three-Mode Optomechanics"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1502.04112","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":"sha256:807e2cb6cf875fbb402505c6946869fed128af3ebfd5e50fd0f28189851b8565","target":"record","created_at":"2026-05-18T01:46:21Z","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":"d6c376936dca1bf9254ccb0c4ad63b47320836f4a9dc3737eb5a5653f7329a34","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2015-02-13T20:43:29Z","title_canon_sha256":"cd275f4da943cb617fd486576c7b829261ea3d874229d86dc9e5e9ac2ba82f2a"},"schema_version":"1.0","source":{"id":"1502.04112","kind":"arxiv","version":1}},"canonical_sha256":"1eb5988b1e40454cf20a7dc7365013aec0abe1e21c525d68e66a2384cc0ff8a3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1eb5988b1e40454cf20a7dc7365013aec0abe1e21c525d68e66a2384cc0ff8a3","first_computed_at":"2026-05-18T01:46:21.878143Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:46:21.878143Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AzKgGeInAq7xjzBYrUN9s5KAsCvae89g51oCew0lZDcGR5nDcWDq44pnfxVnfRRTIYZbWo6r5Z26mTcOWHI3Ag==","signature_status":"signed_v1","signed_at":"2026-05-18T01:46:21.878821Z","signed_message":"canonical_sha256_bytes"},"source_id":"1502.04112","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:807e2cb6cf875fbb402505c6946869fed128af3ebfd5e50fd0f28189851b8565","sha256:f900a165af6c51ff874215a546340275d4b85984e0c1940e0f5c8b1397ffc35c"],"state_sha256":"c0fad0951c2598940ff59eef0f0912cb8f237f6c342657c1c74d9411af109feb"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Ute8Xuscn95iRQbxctRT0JjK5BrcBFHl+JYlRnIkeb1LOeiwcTJDkTS2crxgjHURaj7NPzsJE4ghQ1SQpzhPCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T14:29:07.662826Z","bundle_sha256":"53abb8656bcdbf67bbbe671dcf86d026a18d5dfe5898bbb4ce48a1aa2e00c1c0"}}