{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2016:BQTLSOIHAXEA6PFLSL7PBILKEO","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":"18cea200f1364a415a0b96c6354aa50f8a3faa6280b7cccb7eb9d73c8dfa8db6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-28T17:53:02Z","title_canon_sha256":"3cd45b824ce8a349491cc0ef66dbee27f8d9f9c0430f5aa2fb6b4b3ef64f7dc0"},"schema_version":"1.0","source":{"id":"1604.08533","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1604.08533","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"arxiv_version","alias_value":"1604.08533v1","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1604.08533","created_at":"2026-05-18T01:13:47Z"},{"alias_kind":"pith_short_12","alias_value":"BQTLSOIHAXEA","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_16","alias_value":"BQTLSOIHAXEA6PFL","created_at":"2026-05-18T12:30:07Z"},{"alias_kind":"pith_short_8","alias_value":"BQTLSOIH","created_at":"2026-05-18T12:30:07Z"}],"graph_snapshots":[{"event_id":"sha256:21d4d5660607af20461bc998eaa7db77ff47018c80d646acf24b110ad42acd4e","target":"graph","created_at":"2026-05-18T01:13:47Z","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 simulate the time-dependent coherent dynamics of a spatially indirect exciton (an electron-hole pair with the two particles confined in different layers) in a GaAs coupled quantum well system. We use a unitary wave-packet propagation method taking into account in full the four degrees of freedom of the two particles in a two-dimensional system, including both the long-range Coulomb attraction and arbitrary two-dimensional electrostatic potentials affecting the electron and/or the hole separately. The method has been implemented for massively parallel architectures to cope with the huge nume","authors_text":"Andrea Bertoni, Federico Grasselli, Guido Goldoni","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-28T17:53:02Z","title":"Exact two-body quantum dynamics of an electron-hole pair in semiconductor coupled quantum wells: a time-dependent approach"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1604.08533","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:cbc63c410d296060fcadb96b29e3df4d4d374c4970f41d4dbda4bbc565235468","target":"record","created_at":"2026-05-18T01:13:47Z","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":"18cea200f1364a415a0b96c6354aa50f8a3faa6280b7cccb7eb9d73c8dfa8db6","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2016-04-28T17:53:02Z","title_canon_sha256":"3cd45b824ce8a349491cc0ef66dbee27f8d9f9c0430f5aa2fb6b4b3ef64f7dc0"},"schema_version":"1.0","source":{"id":"1604.08533","kind":"arxiv","version":1}},"canonical_sha256":"0c26b9390705c80f3cab92fef0a16a23b9b3b3a5a32f9de424f0599b51192349","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0c26b9390705c80f3cab92fef0a16a23b9b3b3a5a32f9de424f0599b51192349","first_computed_at":"2026-05-18T01:13:47.373696Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:13:47.373696Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pDKjiyJrZwukASaZCZoekdeiClnp97zkqSnzZYrAoRqIOnQ5xT8TYtmvYQu9lDEAx7ZNyGYhppqrT0ltnr4XCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:13:47.374333Z","signed_message":"canonical_sha256_bytes"},"source_id":"1604.08533","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:cbc63c410d296060fcadb96b29e3df4d4d374c4970f41d4dbda4bbc565235468","sha256:21d4d5660607af20461bc998eaa7db77ff47018c80d646acf24b110ad42acd4e"],"state_sha256":"1accf27e54ca44bc89de2493c0da6fdf0b0d5b9c4bb8ae787d1ea6ad80021411"}