{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:XDILE2TUWR4XDMKOSMV74NN4OY","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":"90e48f0c6094e6e78764469b5d7f08330df3a3034cd6cc940b9be707beac7f8e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-27T12:48:59Z","title_canon_sha256":"b2e5e653743b905b059011f33c640395df88806007d9be524e65ffd3073b3c56"},"schema_version":"1.0","source":{"id":"1707.08841","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1707.08841","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"arxiv_version","alias_value":"1707.08841v2","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1707.08841","created_at":"2026-05-18T00:32:20Z"},{"alias_kind":"pith_short_12","alias_value":"XDILE2TUWR4X","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_16","alias_value":"XDILE2TUWR4XDMKO","created_at":"2026-05-18T12:31:53Z"},{"alias_kind":"pith_short_8","alias_value":"XDILE2TU","created_at":"2026-05-18T12:31:53Z"}],"graph_snapshots":[{"event_id":"sha256:c25304c8dcc848da96b42539d193b7b8664712b4384f854d532e11fb284e03ec","target":"graph","created_at":"2026-05-18T00:32:20Z","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":"Recently solvers for the Anderson impurity model (AIM) working directly on the real-frequency axis have gained much interest. A simple and yet frequently used impurity solver is exact diagonalization (ED), which is based on a discretization of the AIM bath degrees of freedom. Usually, the bath parameters cannot be obtained directly on the real-frequency axis, but have to be determined by a fit procedure on the Matsubara axis. In this work we present an approach where the bath degrees of freedom are first discretized directly on the real-frequency axis using a large number of bath sites ($\\appr","authors_text":"Daniel Bauernfeind, Manuel Zingl, Markus Aichhorn, Martin Nuss","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-27T12:48:59Z","title":"A real-frequency solver for the Anderson impurity model based on bath optimization and cluster perturbation theory"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1707.08841","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":"sha256:59b9796fd8c6b206eb41a33e9825e99931bcd5e831b803ae63efc22d60735483","target":"record","created_at":"2026-05-18T00:32:20Z","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":"90e48f0c6094e6e78764469b5d7f08330df3a3034cd6cc940b9be707beac7f8e","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-07-27T12:48:59Z","title_canon_sha256":"b2e5e653743b905b059011f33c640395df88806007d9be524e65ffd3073b3c56"},"schema_version":"1.0","source":{"id":"1707.08841","kind":"arxiv","version":2}},"canonical_sha256":"b8d0b26a74b47971b14e932bfe35bc7618cc7c80122be07e014a00de1dd1fb4b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b8d0b26a74b47971b14e932bfe35bc7618cc7c80122be07e014a00de1dd1fb4b","first_computed_at":"2026-05-18T00:32:20.288723Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:32:20.288723Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"oK0gl4o20NK3BKCl0wU3bgtgTw0QDWXFRp8GEb7Mss8IY/egOzbuj9JbgVP/3YlzEYQXkQqL1ZcDYLeI+P7XBw==","signature_status":"signed_v1","signed_at":"2026-05-18T00:32:20.289421Z","signed_message":"canonical_sha256_bytes"},"source_id":"1707.08841","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:59b9796fd8c6b206eb41a33e9825e99931bcd5e831b803ae63efc22d60735483","sha256:c25304c8dcc848da96b42539d193b7b8664712b4384f854d532e11fb284e03ec"],"state_sha256":"77870121252aab599ee5ba752c5d5a52c1ab6628c1e578be98b850bf9b80a490"}