{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2015:5RXYBE7BETU3S3HW3CQ253WNQI","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":"f728bb9cf358abec8edec07bc7cd921d1495e1d9b7b5a67f38abcdfe4988acee","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci","cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-05-27T17:41:18Z","title_canon_sha256":"321c67ff9d6a636443474e02ce923e6162694f57011fa13881a0c27ba9ebad06"},"schema_version":"1.0","source":{"id":"1505.07411","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1505.07411","created_at":"2026-05-18T01:09:32Z"},{"alias_kind":"arxiv_version","alias_value":"1505.07411v3","created_at":"2026-05-18T01:09:32Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.07411","created_at":"2026-05-18T01:09:32Z"},{"alias_kind":"pith_short_12","alias_value":"5RXYBE7BETU3","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_16","alias_value":"5RXYBE7BETU3S3HW","created_at":"2026-05-18T12:29:07Z"},{"alias_kind":"pith_short_8","alias_value":"5RXYBE7B","created_at":"2026-05-18T12:29:07Z"}],"graph_snapshots":[{"event_id":"sha256:a7419864f22be66fc142250d4ca1abdb80122848b880dbafa2ca37a919d83a6f","target":"graph","created_at":"2026-05-18T01:09:32Z","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":"The interaction between a single hole and a two-dimensional, paramagnetic, homogeneous electron gas is studied using diffusion quantum Monte Carlo simulations. Calculations of the electron-hole correlation energy, pair-correlation function, and the electron-hole center-of-mass momentum density are reported for a range of electron--hole mass ratios and electron densities. We find numerical evidence of a crossover from a collective Mahan exciton to a trion-dominated state in a density range in agreement with that found in recent experiments on quantum well heterostructures.","authors_text":"G. G. Spink, N. D. Drummond, P. L\\'opez R\\'ios, R. J. Needs","cross_cats":["cond-mat.mes-hall","cond-mat.mtrl-sci","cond-mat.quant-gas"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-05-27T17:41:18Z","title":"Trion formation in a two-dimensional hole-doped electron gas"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.07411","kind":"arxiv","version":3},"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":"sha256:2f9807d7f9df135fdc16aea910d30fb6963d59f5802fb7c7f6c244bc7fb8a254","target":"record","created_at":"2026-05-18T01:09:32Z","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":"f728bb9cf358abec8edec07bc7cd921d1495e1d9b7b5a67f38abcdfe4988acee","cross_cats_sorted":["cond-mat.mes-hall","cond-mat.mtrl-sci","cond-mat.quant-gas"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2015-05-27T17:41:18Z","title_canon_sha256":"321c67ff9d6a636443474e02ce923e6162694f57011fa13881a0c27ba9ebad06"},"schema_version":"1.0","source":{"id":"1505.07411","kind":"arxiv","version":3}},"canonical_sha256":"ec6f8093e124e9b96cf6d8a1aeeecd8223ba6bf04daab01ae9038afb497b3a46","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ec6f8093e124e9b96cf6d8a1aeeecd8223ba6bf04daab01ae9038afb497b3a46","first_computed_at":"2026-05-18T01:09:32.282775Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:09:32.282775Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"ZvxZu5ktyJ2QrB/0D08pgJJI2LvfbaheyTKh8o1Qe2Zfvx307CRYV1UnSfaprapH2k/TvigKDaeqVbZ8VixVCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:09:32.283132Z","signed_message":"canonical_sha256_bytes"},"source_id":"1505.07411","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:2f9807d7f9df135fdc16aea910d30fb6963d59f5802fb7c7f6c244bc7fb8a254","sha256:a7419864f22be66fc142250d4ca1abdb80122848b880dbafa2ca37a919d83a6f"],"state_sha256":"1cdf7d0079eee4d8de4eb53effe2fe88e6632a438e7366b13e44c89b3ed0ecf0"}