{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:6C6ILR7GFVFNQFC6MM67RDX4I4","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":"a02c76167ee1fb9c5e0d5c02f9b42c93eae7f5dc272cff1b46163e78befa02cb","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-26T13:08:09Z","title_canon_sha256":"f33aa92418d9a042dbc74d9412f84803b8546c39f43bf7aaf6ce75ebb174c9b7"},"schema_version":"1.0","source":{"id":"1807.10102","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.10102","created_at":"2026-05-18T00:03:04Z"},{"alias_kind":"arxiv_version","alias_value":"1807.10102v1","created_at":"2026-05-18T00:03:04Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.10102","created_at":"2026-05-18T00:03:04Z"},{"alias_kind":"pith_short_12","alias_value":"6C6ILR7GFVFN","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_16","alias_value":"6C6ILR7GFVFNQFC6","created_at":"2026-05-18T12:32:08Z"},{"alias_kind":"pith_short_8","alias_value":"6C6ILR7G","created_at":"2026-05-18T12:32:08Z"}],"graph_snapshots":[{"event_id":"sha256:66edaea9796e54b315e5494cfb8a04f100d068148973de6096cd4a59aca52a55","target":"graph","created_at":"2026-05-18T00:03:04Z","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 report on the selective excitation of single impurity-bound exciton states in a GaAs double quantum well (DQW). The structure consists of two quantum wells (QWs) coupled by a thin tunnel barrier. The DQW is subject to a transverse electric field to create spatially indirect inter-QW excitons with electrons and holes located in different QWs. We show that the presence of intra-QW charged excitons (trions) blocks carrier tunneling across the barrier to form indirect excitons, thus opening a gap in their emission spectrum. This behavior is attributed to the low binding energy of the trions. Wi","authors_text":"A. Hern\\'andez-M\\'inguez, K. Biermann, M. Yuan, P. V. Santos","cross_cats":["physics.optics"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-26T13:08:09Z","title":"Tunneling blockade and single-photon emission in GaAs double quantum wells"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.10102","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":"sha256:5cf5e7b5910de29b8a13b504a99b326c461589ef9aff5a4b6c93536d6c4ebd60","target":"record","created_at":"2026-05-18T00:03:04Z","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":"a02c76167ee1fb9c5e0d5c02f9b42c93eae7f5dc272cff1b46163e78befa02cb","cross_cats_sorted":["physics.optics"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2018-07-26T13:08:09Z","title_canon_sha256":"f33aa92418d9a042dbc74d9412f84803b8546c39f43bf7aaf6ce75ebb174c9b7"},"schema_version":"1.0","source":{"id":"1807.10102","kind":"arxiv","version":1}},"canonical_sha256":"f0bc85c7e62d4ad8145e633df88efc471f4c190ee0ba5c92626dba2a8e6d4917","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f0bc85c7e62d4ad8145e633df88efc471f4c190ee0ba5c92626dba2a8e6d4917","first_computed_at":"2026-05-18T00:03:04.356931Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:03:04.356931Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3UbxNTOamb+pC1mhXHGh4+5L0OFJawHOfntf9pnDoJ6S5aO/ecGAP9NF0n6QxMUGMrcwQwOHjzsMiZCMcBrjAg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:03:04.357533Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.10102","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:5cf5e7b5910de29b8a13b504a99b326c461589ef9aff5a4b6c93536d6c4ebd60","sha256:66edaea9796e54b315e5494cfb8a04f100d068148973de6096cd4a59aca52a55"],"state_sha256":"fa8a34592de93a335d8c229d3b7b3711a9aeecbfe259f6cc07679bf112cfd7d0"}