{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:MU3NSZ7Q6KP6BYIFROIBYAIPHN","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":"ea90877126183cdcdb99e7bb33f52c069ead32f078b5da8914ff808b34efe91a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-07T18:09:09Z","title_canon_sha256":"0225c38a1acea7440de6ae4d1dc37006c1e80306feb0db9a7d0028eff4f477ba"},"schema_version":"1.0","source":{"id":"2201.02570","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2201.02570","created_at":"2026-07-05T04:55:50Z"},{"alias_kind":"arxiv_version","alias_value":"2201.02570v2","created_at":"2026-07-05T04:55:50Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2201.02570","created_at":"2026-07-05T04:55:50Z"},{"alias_kind":"pith_short_12","alias_value":"MU3NSZ7Q6KP6","created_at":"2026-07-05T04:55:50Z"},{"alias_kind":"pith_short_16","alias_value":"MU3NSZ7Q6KP6BYIF","created_at":"2026-07-05T04:55:50Z"},{"alias_kind":"pith_short_8","alias_value":"MU3NSZ7Q","created_at":"2026-07-05T04:55:50Z"}],"graph_snapshots":[{"event_id":"sha256:80900c57bbe77ee743a97438abaf96178c5deb4f2eb0ef33c392664860644d4f","target":"graph","created_at":"2026-07-05T04:55:50Z","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/2201.02570/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Bosonic quantum codes redundantly encode quantum information in the states of a quantum harmonic oscillator, making it possible to detect and correct errors. Schr\\\"odinger cat codes -- based on the superposition of two coherent states with opposite displacements -- can correct phase-flip errors induced by dephasing, but they are vulnerable to bit-flip errors induced by particle loss. Here, we develop a bosonic quantum code relying on squeezed cat states, i.e. cat states made of a linear superposition of displaced-squeezed states. Squeezed cat states allow to partially correct errors caused by ","authors_text":"David S. Schlegel, Fabrizio Minganti, Vincenzo Savona","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-07T18:09:09Z","title":"Quantum error correction using squeezed Schr\\\"odinger cat states"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2201.02570","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":"sha256:03a6bdd8c28a412560b28073ffbdf4fdc75cc6fa953d6a6c39ca787e659508f8","target":"record","created_at":"2026-07-05T04:55:50Z","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":"ea90877126183cdcdb99e7bb33f52c069ead32f078b5da8914ff808b34efe91a","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2022-01-07T18:09:09Z","title_canon_sha256":"0225c38a1acea7440de6ae4d1dc37006c1e80306feb0db9a7d0028eff4f477ba"},"schema_version":"1.0","source":{"id":"2201.02570","kind":"arxiv","version":2}},"canonical_sha256":"6536d967f0f29fe0e1058b901c010f3b479019cd1b419ad6ca12aacbffc9c448","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"6536d967f0f29fe0e1058b901c010f3b479019cd1b419ad6ca12aacbffc9c448","first_computed_at":"2026-07-05T04:55:50.444152Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:55:50.444152Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"DmAYerjGiGPD2MgaF6dwAFtw2PlIvv/3hygIWy2mJ+mDYGys8qHmgcWAbHo5oylE0gXVnjl5AK2ytRIlZemXCA==","signature_status":"signed_v1","signed_at":"2026-07-05T04:55:50.444685Z","signed_message":"canonical_sha256_bytes"},"source_id":"2201.02570","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:03a6bdd8c28a412560b28073ffbdf4fdc75cc6fa953d6a6c39ca787e659508f8","sha256:80900c57bbe77ee743a97438abaf96178c5deb4f2eb0ef33c392664860644d4f"],"state_sha256":"b87d58f1f09ccf897486dcac526897dd255f5db6bc4da3e0c7944e998afd1f3f"}