{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:46EAIJAY7WQY4LESXRMICCRFHT","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":"bbc67b6db773e88ba1d18d65a99d266efe2a911f9c63d9657adeef2de87faace","cross_cats_sorted":["cond-mat.other","cond-mat.str-el","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-05-24T08:55:09Z","title_canon_sha256":"51b0a7f5aefa82c633c6d9e879c181dbe2754873699c84b42d0a298ffebace78"},"schema_version":"1.0","source":{"id":"1805.09553","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1805.09553","created_at":"2026-05-18T00:08:35Z"},{"alias_kind":"arxiv_version","alias_value":"1805.09553v2","created_at":"2026-05-18T00:08:35Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1805.09553","created_at":"2026-05-18T00:08:35Z"},{"alias_kind":"pith_short_12","alias_value":"46EAIJAY7WQY","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_16","alias_value":"46EAIJAY7WQY4LES","created_at":"2026-05-18T12:32:05Z"},{"alias_kind":"pith_short_8","alias_value":"46EAIJAY","created_at":"2026-05-18T12:32:05Z"}],"graph_snapshots":[{"event_id":"sha256:766cdeab0ebff9640e90af4490c8fdaec5eadba319ecf1ccd9f1ab5e16a405fa","target":"graph","created_at":"2026-05-18T00:08:35Z","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":"Quantum Monte Carlo (QMC) is a stochastic method which has been particularly successful for ground-state electronic structure calculations but mostly unexplored for the computation of excited-state energies. Here, we show that, within a Jastrow-free QMC protocol relying on a deterministic and systematic construction of nodal surfaces using selected configuration interaction (sCI) expansions, one is able to obtain accurate excitation energies at the fixed-node diffusion Monte Carlo (FN-DMC) level. This evidences that the fixed-node errors in the ground and excited states obtained with sCI wave ","authors_text":"Anouar Benali, Anthony Scemama, Denis Jacquemin, Michel Caffarel, Pierre-Fran\\c{c}ois Loos","cross_cats":["cond-mat.other","cond-mat.str-el","physics.comp-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-05-24T08:55:09Z","title":"Excitation energies from diffusion Monte Carlo using selected Configuration Interaction nodes"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1805.09553","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":"sha256:721d1e4f9d80d97a3a4b312e8c721a487238c7190fe1b6ca870649b28f5c5862","target":"record","created_at":"2026-05-18T00:08:35Z","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":"bbc67b6db773e88ba1d18d65a99d266efe2a911f9c63d9657adeef2de87faace","cross_cats_sorted":["cond-mat.other","cond-mat.str-el","physics.comp-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"physics.chem-ph","submitted_at":"2018-05-24T08:55:09Z","title_canon_sha256":"51b0a7f5aefa82c633c6d9e879c181dbe2754873699c84b42d0a298ffebace78"},"schema_version":"1.0","source":{"id":"1805.09553","kind":"arxiv","version":2}},"canonical_sha256":"e788042418fda18e2c92bc58810a253cce5a6cb460f15dbde9ac3614c3515b6a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e788042418fda18e2c92bc58810a253cce5a6cb460f15dbde9ac3614c3515b6a","first_computed_at":"2026-05-18T00:08:35.651506Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:08:35.651506Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZLHpQat2UA8b73INfHNZR83Wtybi/7OTVJRIwOQ0+v7r1ySC+kIRDAiLvPaZncwhuhb0oxGJ6ZilG4P0PMeCQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:08:35.652119Z","signed_message":"canonical_sha256_bytes"},"source_id":"1805.09553","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:721d1e4f9d80d97a3a4b312e8c721a487238c7190fe1b6ca870649b28f5c5862","sha256:766cdeab0ebff9640e90af4490c8fdaec5eadba319ecf1ccd9f1ab5e16a405fa"],"state_sha256":"6c6407f56b4557955b10204ec423f7449d51ce57efdfd1f9a99b858f0243f477"}