{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:BVC4L4BXVDCLZUQYBOIOB7MG7E","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":"b8911feb60a11deeaf09c4b7ea61c02905b0b7f837f27f3860dc972828ed231d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-08T09:20:00Z","title_canon_sha256":"6c5c3665bec0ac82ec93260a6f2bd49e32e913f24cd50b82f6ce7dd5136c7be7"},"schema_version":"1.0","source":{"id":"1706.02486","kind":"arxiv","version":4}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.02486","created_at":"2026-05-18T00:26:29Z"},{"alias_kind":"arxiv_version","alias_value":"1706.02486v4","created_at":"2026-05-18T00:26:29Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.02486","created_at":"2026-05-18T00:26:29Z"},{"alias_kind":"pith_short_12","alias_value":"BVC4L4BXVDCL","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"BVC4L4BXVDCLZUQY","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"BVC4L4BX","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:05a574d9d78f401c68a29e68bd6618a15054539d747622935211800636646ca5","target":"graph","created_at":"2026-05-18T00:26:29Z","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":"Multi-photon entangled states are a crucial resource for many applications in quantum information science. Semiconductor quantum dots offer a promising route to generate such states by mediating photon-photon correlations via a confined electron spin, but dephasing caused by the host nuclear spin environment typically limits coherence (and hence entanglement) between photons to the spin $T_2^*$ time of a few nanoseconds. We propose a protocol for the deterministic generation of multi-photon entangled states that is inherently robust against the dominating slow nuclear spin environment fluctuat","authors_text":"Dara P. S. McCutcheon, Emil V. Denning, Jake Iles-Smith, Jesper Mork","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-08T09:20:00Z","title":"Protocol for generating multi-photon entangled states from quantum dots in the presence of nuclear spin fluctuations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.02486","kind":"arxiv","version":4},"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":"sha256:970be5e74dfa351cdaf86e3cf9a2c62a0a9c7e782ba95a38341bc721c48bcbcf","target":"record","created_at":"2026-05-18T00:26:29Z","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":"b8911feb60a11deeaf09c4b7ea61c02905b0b7f837f27f3860dc972828ed231d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"quant-ph","submitted_at":"2017-06-08T09:20:00Z","title_canon_sha256":"6c5c3665bec0ac82ec93260a6f2bd49e32e913f24cd50b82f6ce7dd5136c7be7"},"schema_version":"1.0","source":{"id":"1706.02486","kind":"arxiv","version":4}},"canonical_sha256":"0d45c5f037a8c4bcd2180b90e0fd86f9188e4a988bc0ff9ccea37f95cccdb57b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0d45c5f037a8c4bcd2180b90e0fd86f9188e4a988bc0ff9ccea37f95cccdb57b","first_computed_at":"2026-05-18T00:26:29.913638Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:29.913638Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"09WTod3VgHWaLFJN+lS3QfQ6MNbtXt9N0OAF29TMuwBhBjTcb/b+Q3Pn9QPZFamHVk3dNHEgmNDb8KLvNa4OAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:29.914343Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.02486","source_kind":"arxiv","source_version":4}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:970be5e74dfa351cdaf86e3cf9a2c62a0a9c7e782ba95a38341bc721c48bcbcf","sha256:05a574d9d78f401c68a29e68bd6618a15054539d747622935211800636646ca5"],"state_sha256":"3b6a4e351e9d8ad3b3737a11f11f0cdf79bd86c5ce100c02f1fc69130a9b41e6"}