{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2005:ETP5HYPRL7BAOPUEUJOIKESZJG","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":"acb1e781decc784e8ab6ea9504f1d99e955e58883ae29807060b87b2c79c235f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-04-01T06:24:21Z","title_canon_sha256":"0b09062ab1e0094cf3bff75a25a3693521a9236f940a587c7ac41e5cf775d6ef"},"schema_version":"1.0","source":{"id":"cond-mat/0504017","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"cond-mat/0504017","created_at":"2026-07-04T16:53:42Z"},{"alias_kind":"arxiv_version","alias_value":"cond-mat/0504017v1","created_at":"2026-07-04T16:53:42Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.cond-mat/0504017","created_at":"2026-07-04T16:53:42Z"},{"alias_kind":"pith_short_12","alias_value":"ETP5HYPRL7BA","created_at":"2026-07-04T16:53:42Z"},{"alias_kind":"pith_short_16","alias_value":"ETP5HYPRL7BAOPUE","created_at":"2026-07-04T16:53:42Z"},{"alias_kind":"pith_short_8","alias_value":"ETP5HYPR","created_at":"2026-07-04T16:53:42Z"}],"graph_snapshots":[{"event_id":"sha256:ee8bde57f1188adfed8361fe03f2e824f1e439186bf0973eda7cbe0dcfaa1c25","target":"graph","created_at":"2026-07-04T16:53:42Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/cond-mat/0504017/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The tunneling density of states exhibits anomalies (cusps, algebraic suppressions, and pseudogaps) at the Fermi energy in a wide variety of low-dimensional and strongly correlated electron systems. We argue that in many cases these spectral anomalies are caused by an infrared catastrophe in the screening response to the sudden introduction of a new electron into the system during a tunneling event. A nonperturbative functional-integral method is introduced to account for this effect, making use of methods developed for the x-ray edge singularity problem. The formalism is applicable to lattice ","authors_text":"Kelly R. Patton, Michael R. Geller","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-04-01T06:24:21Z","title":"Infrared catastrophe and tunneling into strongly correlated electron systems: Perturbative x-ray edge limit"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"cond-mat/0504017","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":"sha256:0235e06c916802a972234a301c894e2ef87524b487681ded9803ae035ee2c73c","target":"record","created_at":"2026-07-04T16:53:42Z","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":"acb1e781decc784e8ab6ea9504f1d99e955e58883ae29807060b87b2c79c235f","cross_cats_sorted":["cond-mat.mes-hall"],"license":"","primary_cat":"cond-mat.str-el","submitted_at":"2005-04-01T06:24:21Z","title_canon_sha256":"0b09062ab1e0094cf3bff75a25a3693521a9236f940a587c7ac41e5cf775d6ef"},"schema_version":"1.0","source":{"id":"cond-mat/0504017","kind":"arxiv","version":1}},"canonical_sha256":"24dfd3e1f15fc2073e84a25c85125949a705526f443111c6f1ed05602ac485a7","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"24dfd3e1f15fc2073e84a25c85125949a705526f443111c6f1ed05602ac485a7","first_computed_at":"2026-07-04T16:53:42.494364Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T16:53:42.494364Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"WxiqlqeAYoNMMNKFOgvbxfuPMIxniFHjEaL2BG0GUaceZQYZGcry4+ZrN6C4sYqFoSJwIctICJExkQ90h1h0Aw==","signature_status":"signed_v1","signed_at":"2026-07-04T16:53:42.494708Z","signed_message":"canonical_sha256_bytes"},"source_id":"cond-mat/0504017","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0235e06c916802a972234a301c894e2ef87524b487681ded9803ae035ee2c73c","sha256:ee8bde57f1188adfed8361fe03f2e824f1e439186bf0973eda7cbe0dcfaa1c25"],"state_sha256":"dcf82c3dc7ae7b88da634bfbc7b316ba03d7c92091dfb7bcdeb41366e1af74fe"}