{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:SNQJ45GDLMEYQ2SGQPPBI5YYVP","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":"4d546b369539c2975a7376263a56955083953b465ba652c4dce30720a07395fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-01-19T18:36:51Z","title_canon_sha256":"8af3d8e5c11fb35cda399a76e4e22729a467a18deed2bf34f19363f7b3965b0f"},"schema_version":"1.0","source":{"id":"2101.07772","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2101.07772","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"arxiv_version","alias_value":"2101.07772v2","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2101.07772","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_12","alias_value":"SNQJ45GDLMEY","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_16","alias_value":"SNQJ45GDLMEYQ2SG","created_at":"2026-07-05T02:55:53Z"},{"alias_kind":"pith_short_8","alias_value":"SNQJ45GD","created_at":"2026-07-05T02:55:53Z"}],"graph_snapshots":[{"event_id":"sha256:fbb84b936432f967dae19f7b35e97359756c353ae7a4a04ffbb5b31963952ec2","target":"graph","created_at":"2026-07-05T02:55:53Z","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/2101.07772/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Cluster states are useful in many quantum information processing applications. In particular, universal measurement-based quantum computation (MBQC) utilizes 2D cluster states, and topologically fault-tolerant MBQC requires cluster states with three or higher dimensions. This work proposes a protocol to deterministically generate multidimensional photonic cluster states using a single atom-cavity system and time-delay feedback. The dimensionality of the cluster state increases linearly with the number of time-delay feedback. We firstly give a diagrammatic derivation of the tensor network state","authors_text":"Edo Waks, Yu Shi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-01-19T18:36:51Z","title":"Deterministic generation of multidimensional photonic cluster states using time-delay feedback"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2101.07772","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:bf4185aa605beaaafb6faabdfdb2a21e99dafd387b3e67a8be0338e524ff5368","target":"record","created_at":"2026-07-05T02:55:53Z","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":"4d546b369539c2975a7376263a56955083953b465ba652c4dce30720a07395fe","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2021-01-19T18:36:51Z","title_canon_sha256":"8af3d8e5c11fb35cda399a76e4e22729a467a18deed2bf34f19363f7b3965b0f"},"schema_version":"1.0","source":{"id":"2101.07772","kind":"arxiv","version":2}},"canonical_sha256":"93609e74c35b09886a4683de147718abcc01b9ebe4f15de62e2bf137951ec8e0","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"93609e74c35b09886a4683de147718abcc01b9ebe4f15de62e2bf137951ec8e0","first_computed_at":"2026-07-05T02:55:53.745813Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T02:55:53.745813Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"iJ+aSn9I4tLvoTCJRbOtKV1EjwagxssKRGUrcO1v+PXm0PRK6tMXY47+bRNv4kTmBWymBXZ+P9lp8cBlnpBBDg==","signature_status":"signed_v1","signed_at":"2026-07-05T02:55:53.746158Z","signed_message":"canonical_sha256_bytes"},"source_id":"2101.07772","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:bf4185aa605beaaafb6faabdfdb2a21e99dafd387b3e67a8be0338e524ff5368","sha256:fbb84b936432f967dae19f7b35e97359756c353ae7a4a04ffbb5b31963952ec2"],"state_sha256":"b141851853f514b6caea87b8abee8b5c260a35632048ebdee34fa3c995de0053"}