{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:4ZSDITAPV5POGV4KMITJEK44GI","short_pith_number":"pith:4ZSDITAP","schema_version":"1.0","canonical_sha256":"e664344c0faf5ee3578a6226922b9c321eced3591276803a17b9ace503c1415e","source":{"kind":"arxiv","id":"1711.01127","version":4},"attestation_state":"computed","paper":{"title":"Exploring excited eigenstates of many-body systems using the functional renormalization group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Christian Kl\\\"ockner, Christoph Karrasch, Dante Marvin Kennes","submitted_at":"2017-11-03T12:26:46Z","abstract_excerpt":"We introduce approximate, functional renormalization group based schemes to obtain correlation functions in pure excited eigenstates of large fermionic many-body systems at arbitrary energies. The algorithms are thouroughly benchmarked and their strengths and shortcomings are documented using a one-dimensional interacting tight-binding chain as a prototypical testbed. We study two `toy applications' from the world of Luttinger liquid physics: the survival of power laws in lowly-excited states as well as the spectral function of high-energy `block' excitations which feature several single-parti"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1711.01127","kind":"arxiv","version":4},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2017-11-03T12:26:46Z","cross_cats_sorted":[],"title_canon_sha256":"0de59e1bd4a95975be7439f31bcb78140cd86b6a695411681d88a1854097d1c9","abstract_canon_sha256":"aea6c3b62d6fab918c12928d95c2a3a4f4717ef259eedd39e9c8e7a0bb487f17"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:15:20.285871Z","signature_b64":"eLNPuPoQDkZLw4ScLdnkCDzsnx6J3gRrTBq2i8XVvCMIZcP/dWra2M970avbxKvyvntpYwPlP1PrE18FoXHxDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e664344c0faf5ee3578a6226922b9c321eced3591276803a17b9ace503c1415e","last_reissued_at":"2026-05-18T00:15:20.285369Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:15:20.285369Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Exploring excited eigenstates of many-body systems using the functional renormalization group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Christian Kl\\\"ockner, Christoph Karrasch, Dante Marvin Kennes","submitted_at":"2017-11-03T12:26:46Z","abstract_excerpt":"We introduce approximate, functional renormalization group based schemes to obtain correlation functions in pure excited eigenstates of large fermionic many-body systems at arbitrary energies. The algorithms are thouroughly benchmarked and their strengths and shortcomings are documented using a one-dimensional interacting tight-binding chain as a prototypical testbed. We study two `toy applications' from the world of Luttinger liquid physics: the survival of power laws in lowly-excited states as well as the spectral function of high-energy `block' excitations which feature several single-parti"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1711.01127","kind":"arxiv","version":4},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1711.01127","created_at":"2026-05-18T00:15:20.285472+00:00"},{"alias_kind":"arxiv_version","alias_value":"1711.01127v4","created_at":"2026-05-18T00:15:20.285472+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1711.01127","created_at":"2026-05-18T00:15:20.285472+00:00"},{"alias_kind":"pith_short_12","alias_value":"4ZSDITAPV5PO","created_at":"2026-05-18T12:31:00.734936+00:00"},{"alias_kind":"pith_short_16","alias_value":"4ZSDITAPV5POGV4K","created_at":"2026-05-18T12:31:00.734936+00:00"},{"alias_kind":"pith_short_8","alias_value":"4ZSDITAP","created_at":"2026-05-18T12:31:00.734936+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI","json":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI.json","graph_json":"https://pith.science/api/pith-number/4ZSDITAPV5POGV4KMITJEK44GI/graph.json","events_json":"https://pith.science/api/pith-number/4ZSDITAPV5POGV4KMITJEK44GI/events.json","paper":"https://pith.science/paper/4ZSDITAP"},"agent_actions":{"view_html":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI","download_json":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI.json","view_paper":"https://pith.science/paper/4ZSDITAP","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1711.01127&json=true","fetch_graph":"https://pith.science/api/pith-number/4ZSDITAPV5POGV4KMITJEK44GI/graph.json","fetch_events":"https://pith.science/api/pith-number/4ZSDITAPV5POGV4KMITJEK44GI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI/action/storage_attestation","attest_author":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI/action/author_attestation","sign_citation":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI/action/citation_signature","submit_replication":"https://pith.science/pith/4ZSDITAPV5POGV4KMITJEK44GI/action/replication_record"}},"created_at":"2026-05-18T00:15:20.285472+00:00","updated_at":"2026-05-18T00:15:20.285472+00:00"}