{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:VT7DQSG3H5KCXY4BWBRQPOKLT6","short_pith_number":"pith:VT7DQSG3","canonical_record":{"source":{"id":"2209.06029","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-09-13T14:30:50Z","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"title_canon_sha256":"dfde5c1fcd305ba8ff7170bbef4d7d24eadd13b85da14a38becb96f5396b0315","abstract_canon_sha256":"0e8fd0fb73174ade402d92db9b5525900869ac976ad1adfc7685dd86547db9b4"},"schema_version":"1.0"},"canonical_sha256":"acfe3848db3f542be381b06307b94b9f853e2b15957312d2e32846ea658bb9e1","source":{"kind":"arxiv","id":"2209.06029","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.06029","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"arxiv_version","alias_value":"2209.06029v2","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.06029","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"pith_short_12","alias_value":"VT7DQSG3H5KC","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"pith_short_16","alias_value":"VT7DQSG3H5KCXY4B","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"pith_short_8","alias_value":"VT7DQSG3","created_at":"2026-07-05T05:01:40Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:VT7DQSG3H5KCXY4BWBRQPOKLT6","target":"record","payload":{"canonical_record":{"source":{"id":"2209.06029","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-09-13T14:30:50Z","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"title_canon_sha256":"dfde5c1fcd305ba8ff7170bbef4d7d24eadd13b85da14a38becb96f5396b0315","abstract_canon_sha256":"0e8fd0fb73174ade402d92db9b5525900869ac976ad1adfc7685dd86547db9b4"},"schema_version":"1.0"},"canonical_sha256":"acfe3848db3f542be381b06307b94b9f853e2b15957312d2e32846ea658bb9e1","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T05:01:40.979291Z","signature_b64":"2Kshjuv4Koq/bIqmxaVknYtlq17X3BRHnzvpEP1u2FhDwZQ9m3omYme9qCgQ2dQ9v3OgbN7kB0QjXQxZRLw4AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"acfe3848db3f542be381b06307b94b9f853e2b15957312d2e32846ea658bb9e1","last_reissued_at":"2026-07-05T05:01:40.978874Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T05:01:40.978874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2209.06029","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T05:01:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"68+oW6PNqGZmCI21NlPINXKCiJIKKaYg+BZd2SLe+kbHM8c6jIqgXM8rCNZESY2R0U+zSIlnMrrGorfFpDC4Cg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:55:02.043761Z"},"content_sha256":"16a65acb233c32d6ac7c2fa1b4f6d2134dc678e19e0a6541f9443dd7c606312d","schema_version":"1.0","event_id":"sha256:16a65acb233c32d6ac7c2fa1b4f6d2134dc678e19e0a6541f9443dd7c606312d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:VT7DQSG3H5KCXY4BWBRQPOKLT6","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Single-laser feedback cooling of optomechanical resonators","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["cond-mat.mes-hall","quant-ph"],"primary_cat":"physics.optics","authors_text":"Arvind Shankar Kumar, Henri Lyyra, Joonas N\\\"atkinniemi, Juha T. Muhonen","submitted_at":"2022-09-13T14:30:50Z","abstract_excerpt":"Measurement-based control has emerged as an important technique to prepare mechanical resonators in pure quantum states for applications in quantum information processing and quantum sensing. Conventionally this has required two separate channels, one for probing the motion and another one acting back on the resonator. In this work, we analyze and experimentally demonstrate a technique of single-laser feedback cooling, where one laser is used for both probing and controlling the mechanical motion. We show using an analytical model and experiments that feedback cooling is feasible in this mode "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.06029","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/2209.06029/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":"2026-07-05T05:01:40Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uAVCTYZ7A7IdSReDfn2QN6KmQxkPgrwp+SkchyBnuT/wl0Gqy65v3ABn51TyW/tELbfE9GNEdvGyHG6bubXUBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-06T07:55:02.044438Z"},"content_sha256":"c0a49d850ddb429d6868ae9214f4a6a3d70ef3e84837ae8d39b95444f2b2089c","schema_version":"1.0","event_id":"sha256:c0a49d850ddb429d6868ae9214f4a6a3d70ef3e84837ae8d39b95444f2b2089c"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6/bundle.json","state_url":"https://pith.science/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6/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":"2026-08-06T07:55:02Z","links":{"resolver":"https://pith.science/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6","bundle":"https://pith.science/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6/bundle.json","state":"https://pith.science/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6/state.json","well_known_bundle":"https://pith.science/.well-known/pith/VT7DQSG3H5KCXY4BWBRQPOKLT6/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:VT7DQSG3H5KCXY4BWBRQPOKLT6","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":"0e8fd0fb73174ade402d92db9b5525900869ac976ad1adfc7685dd86547db9b4","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-09-13T14:30:50Z","title_canon_sha256":"dfde5c1fcd305ba8ff7170bbef4d7d24eadd13b85da14a38becb96f5396b0315"},"schema_version":"1.0","source":{"id":"2209.06029","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2209.06029","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"arxiv_version","alias_value":"2209.06029v2","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2209.06029","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"pith_short_12","alias_value":"VT7DQSG3H5KC","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"pith_short_16","alias_value":"VT7DQSG3H5KCXY4B","created_at":"2026-07-05T05:01:40Z"},{"alias_kind":"pith_short_8","alias_value":"VT7DQSG3","created_at":"2026-07-05T05:01:40Z"}],"graph_snapshots":[{"event_id":"sha256:c0a49d850ddb429d6868ae9214f4a6a3d70ef3e84837ae8d39b95444f2b2089c","target":"graph","created_at":"2026-07-05T05:01:40Z","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/2209.06029/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Measurement-based control has emerged as an important technique to prepare mechanical resonators in pure quantum states for applications in quantum information processing and quantum sensing. Conventionally this has required two separate channels, one for probing the motion and another one acting back on the resonator. In this work, we analyze and experimentally demonstrate a technique of single-laser feedback cooling, where one laser is used for both probing and controlling the mechanical motion. We show using an analytical model and experiments that feedback cooling is feasible in this mode ","authors_text":"Arvind Shankar Kumar, Henri Lyyra, Joonas N\\\"atkinniemi, Juha T. Muhonen","cross_cats":["cond-mat.mes-hall","quant-ph"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-09-13T14:30:50Z","title":"Single-laser feedback cooling of optomechanical resonators"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2209.06029","kind":"arxiv","version":2},"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":"sha256:16a65acb233c32d6ac7c2fa1b4f6d2134dc678e19e0a6541f9443dd7c606312d","target":"record","created_at":"2026-07-05T05:01:40Z","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":"0e8fd0fb73174ade402d92db9b5525900869ac976ad1adfc7685dd86547db9b4","cross_cats_sorted":["cond-mat.mes-hall","quant-ph"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"physics.optics","submitted_at":"2022-09-13T14:30:50Z","title_canon_sha256":"dfde5c1fcd305ba8ff7170bbef4d7d24eadd13b85da14a38becb96f5396b0315"},"schema_version":"1.0","source":{"id":"2209.06029","kind":"arxiv","version":2}},"canonical_sha256":"acfe3848db3f542be381b06307b94b9f853e2b15957312d2e32846ea658bb9e1","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"acfe3848db3f542be381b06307b94b9f853e2b15957312d2e32846ea658bb9e1","first_computed_at":"2026-07-05T05:01:40.978874Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T05:01:40.978874Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"2Kshjuv4Koq/bIqmxaVknYtlq17X3BRHnzvpEP1u2FhDwZQ9m3omYme9qCgQ2dQ9v3OgbN7kB0QjXQxZRLw4AQ==","signature_status":"signed_v1","signed_at":"2026-07-05T05:01:40.979291Z","signed_message":"canonical_sha256_bytes"},"source_id":"2209.06029","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:16a65acb233c32d6ac7c2fa1b4f6d2134dc678e19e0a6541f9443dd7c606312d","sha256:c0a49d850ddb429d6868ae9214f4a6a3d70ef3e84837ae8d39b95444f2b2089c"],"state_sha256":"fe9578a5d34014dafa4032049a3a78da3f9046fbeb970525513f272fb66626a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WmJv6EDrEvbFpuQgOnCJWaCR2wrQanqq7MfXd6cqhPLYLNabVNAF8me2EPB5IRR+0QNgJlLa+9V1XiGRO0KEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-06T07:55:02.050936Z","bundle_sha256":"5376647b231361b6267b81605a935017842513d92225ff4db6f16a9fae7a405a"}}