{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2NNQJRYOIXUX3WBZAYJP57QS2Q","short_pith_number":"pith:2NNQJRYO","canonical_record":{"source":{"id":"1309.5485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-21T14:37:24Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"1abe356f1d642ab01fcd4139da60ede9cc2883a8bcb0b5f72a1fb7170de6719a","abstract_canon_sha256":"598bb99ea5da5f22d0152f9ca8cc5847d62d2a6571aeb96831adefe0c64d035f"},"schema_version":"1.0"},"canonical_sha256":"d35b04c70e45e97dd8390612fefe12d41a45ebcd27bd3863af85a71f229ca124","source":{"kind":"arxiv","id":"1309.5485","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5485","created_at":"2026-05-18T02:57:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5485v1","created_at":"2026-05-18T02:57:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5485","created_at":"2026-05-18T02:57:35Z"},{"alias_kind":"pith_short_12","alias_value":"2NNQJRYOIXUX","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2NNQJRYOIXUX3WBZ","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2NNQJRYO","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2NNQJRYOIXUX3WBZAYJP57QS2Q","target":"record","payload":{"canonical_record":{"source":{"id":"1309.5485","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-21T14:37:24Z","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"title_canon_sha256":"1abe356f1d642ab01fcd4139da60ede9cc2883a8bcb0b5f72a1fb7170de6719a","abstract_canon_sha256":"598bb99ea5da5f22d0152f9ca8cc5847d62d2a6571aeb96831adefe0c64d035f"},"schema_version":"1.0"},"canonical_sha256":"d35b04c70e45e97dd8390612fefe12d41a45ebcd27bd3863af85a71f229ca124","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:57:35.643334Z","signature_b64":"KEocSQ0id+ayBNUIhCzF3NTj3pqNzcmxbMZjXjLAv2nrTvGVgt4L2AS9izehdbwgZ5vEPFqKXFE4yStih4hTBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d35b04c70e45e97dd8390612fefe12d41a45ebcd27bd3863af85a71f229ca124","last_reissued_at":"2026-05-18T02:57:35.642758Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:57:35.642758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1309.5485","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":"2026-05-18T02:57:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Z2sbXgumHQzWTNhYq5UWIoMiGyQftpvym2GpBYox1LznTJhizlffxgB7vHJrmZd1q6BTQQ3RYjxCvVWbwnOeAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:46:16.925165Z"},"content_sha256":"d3eddea352f3160190603bd8c91777574fdf9e8e9e642241ddb3b5a9dc9b2384","schema_version":"1.0","event_id":"sha256:d3eddea352f3160190603bd8c91777574fdf9e8e9e642241ddb3b5a9dc9b2384"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2NNQJRYOIXUX3WBZAYJP57QS2Q","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Robust stationary mechanical squeezing in a kicked quadratic optomechanical system","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cond-mat.mes-hall","physics.optics"],"primary_cat":"quant-ph","authors_text":"D. Vitali, G. Di Giuseppe, G. S. Agarwal, M. Asjad, M. S. Kim, P. Tombesi","submitted_at":"2013-09-21T14:37:24Z","abstract_excerpt":"We propose a scheme for the generation of a robust stationary squeezed state of a mechanical resonator in a quadratically coupled optomechanical system, driven by a pulsed laser. The intracavity photon number presents periodic intense peaks suddenly stiffening the effective harmonic potential felt by the mechanical resonator. These \"optical spring kicks\" tend to squeeze the resonator position, and due to the interplay with fluctuation-dissipation processes one can generate a stationary state with more than 13 dB of squeezing even starting from moderately \"pre-cooled\" initial thermal states."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5485","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":"2026-05-18T02:57:35Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ggLmVmh96H2qeB1RjnUoxxI99jhKFlSzax1sJpWZWddvjzd6PkmadTydiGgADhtG/yuuhUZbrjAo5B3OyAzvCg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T14:46:16.925918Z"},"content_sha256":"5f5f2232a92d4614066269b31b0e966ac5791109e54bae61b5337a4c4fce1f06","schema_version":"1.0","event_id":"sha256:5f5f2232a92d4614066269b31b0e966ac5791109e54bae61b5337a4c4fce1f06"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q/bundle.json","state_url":"https://pith.science/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q/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":"2026-05-26T14:46:16Z","links":{"resolver":"https://pith.science/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q","bundle":"https://pith.science/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q/bundle.json","state":"https://pith.science/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2NNQJRYOIXUX3WBZAYJP57QS2Q/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2NNQJRYOIXUX3WBZAYJP57QS2Q","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":"598bb99ea5da5f22d0152f9ca8cc5847d62d2a6571aeb96831adefe0c64d035f","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-21T14:37:24Z","title_canon_sha256":"1abe356f1d642ab01fcd4139da60ede9cc2883a8bcb0b5f72a1fb7170de6719a"},"schema_version":"1.0","source":{"id":"1309.5485","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1309.5485","created_at":"2026-05-18T02:57:35Z"},{"alias_kind":"arxiv_version","alias_value":"1309.5485v1","created_at":"2026-05-18T02:57:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1309.5485","created_at":"2026-05-18T02:57:35Z"},{"alias_kind":"pith_short_12","alias_value":"2NNQJRYOIXUX","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2NNQJRYOIXUX3WBZ","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2NNQJRYO","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:5f5f2232a92d4614066269b31b0e966ac5791109e54bae61b5337a4c4fce1f06","target":"graph","created_at":"2026-05-18T02:57:35Z","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 a scheme for the generation of a robust stationary squeezed state of a mechanical resonator in a quadratically coupled optomechanical system, driven by a pulsed laser. The intracavity photon number presents periodic intense peaks suddenly stiffening the effective harmonic potential felt by the mechanical resonator. These \"optical spring kicks\" tend to squeeze the resonator position, and due to the interplay with fluctuation-dissipation processes one can generate a stationary state with more than 13 dB of squeezing even starting from moderately \"pre-cooled\" initial thermal states.","authors_text":"D. Vitali, G. Di Giuseppe, G. S. Agarwal, M. Asjad, M. S. Kim, P. Tombesi","cross_cats":["cond-mat.mes-hall","physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-21T14:37:24Z","title":"Robust stationary mechanical squeezing in a kicked quadratic optomechanical system"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1309.5485","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:d3eddea352f3160190603bd8c91777574fdf9e8e9e642241ddb3b5a9dc9b2384","target":"record","created_at":"2026-05-18T02:57:35Z","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":"598bb99ea5da5f22d0152f9ca8cc5847d62d2a6571aeb96831adefe0c64d035f","cross_cats_sorted":["cond-mat.mes-hall","physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2013-09-21T14:37:24Z","title_canon_sha256":"1abe356f1d642ab01fcd4139da60ede9cc2883a8bcb0b5f72a1fb7170de6719a"},"schema_version":"1.0","source":{"id":"1309.5485","kind":"arxiv","version":1}},"canonical_sha256":"d35b04c70e45e97dd8390612fefe12d41a45ebcd27bd3863af85a71f229ca124","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d35b04c70e45e97dd8390612fefe12d41a45ebcd27bd3863af85a71f229ca124","first_computed_at":"2026-05-18T02:57:35.642758Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:57:35.642758Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"KEocSQ0id+ayBNUIhCzF3NTj3pqNzcmxbMZjXjLAv2nrTvGVgt4L2AS9izehdbwgZ5vEPFqKXFE4yStih4hTBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T02:57:35.643334Z","signed_message":"canonical_sha256_bytes"},"source_id":"1309.5485","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d3eddea352f3160190603bd8c91777574fdf9e8e9e642241ddb3b5a9dc9b2384","sha256:5f5f2232a92d4614066269b31b0e966ac5791109e54bae61b5337a4c4fce1f06"],"state_sha256":"8dc5590eecf830e26755609badca2ebf077b3c1e19ff55c8905848e7f5ab67ec"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HxlYikq++FpVNAsQxiR0A6533AzSsLRDW8QlN0vbrkxFO272snFGOrYCaO3YXr3pG8CBv/R4hff+SkH8jemrDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T14:46:16.929751Z","bundle_sha256":"e3e0d63c9f28cd4b4326d206a7f2132daf41fb5b18a4b096b8144157eaca7370"}}