{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:M2UODXZUOHPLEMR4EBO5DORY7O","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":"f41e43758d9766aa7ef6b2c2d957c770d106eaf0e1ef5fc2d7aa951cb8604dce","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-02T00:56:19Z","title_canon_sha256":"19bdda9e353d0c801ef28c7bfc17292fc52b4ccabcc51433951e0655df56a3e5"},"schema_version":"1.0","source":{"id":"1803.00675","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1803.00675","created_at":"2026-05-17T23:58:56Z"},{"alias_kind":"arxiv_version","alias_value":"1803.00675v3","created_at":"2026-05-17T23:58:56Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1803.00675","created_at":"2026-05-17T23:58:56Z"},{"alias_kind":"pith_short_12","alias_value":"M2UODXZUOHPL","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_16","alias_value":"M2UODXZUOHPLEMR4","created_at":"2026-05-18T12:32:37Z"},{"alias_kind":"pith_short_8","alias_value":"M2UODXZU","created_at":"2026-05-18T12:32:37Z"}],"graph_snapshots":[{"event_id":"sha256:c387a99e02764fdb3adc918b0abd66e47994854a14e665839a5de7b8d4139c8d","target":"graph","created_at":"2026-05-17T23:58:56Z","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":"We apply the self-consistent renormalized perturbation theory to the Hubbard model on the square lattice, at finite temperatures in order to study the evolution of the Fermi-surface (FS) as a function of temperature and doping. Previously, a nematic phase for the same model has been reported to appear at weak coupling near a Lifshitz transition from closed to open FS at zero temperature where the self-consistent renormalized perturbation theory was shown to be sensitive to small deformations of the FS. We find that the competition with the superconducting order leads to a maximal nematic order","authors_text":"Joseph J. Betouras, Pablo Rodriguez-Lopez, Sergey Slizovskiy","cross_cats":["cond-mat.mes-hall"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-02T00:56:19Z","title":"Nematic phase in a two-dimensional Hubbard model at weak coupling and finite temperature"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1803.00675","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":"sha256:9a9a136ac09c8891d51c6361886cdc7b5f04eb938325dc6f99ba0c5fff6cbc3c","target":"record","created_at":"2026-05-17T23:58:56Z","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":"f41e43758d9766aa7ef6b2c2d957c770d106eaf0e1ef5fc2d7aa951cb8604dce","cross_cats_sorted":["cond-mat.mes-hall"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2018-03-02T00:56:19Z","title_canon_sha256":"19bdda9e353d0c801ef28c7bfc17292fc52b4ccabcc51433951e0655df56a3e5"},"schema_version":"1.0","source":{"id":"1803.00675","kind":"arxiv","version":3}},"canonical_sha256":"66a8e1df3471deb2323c205dd1ba38fb9e72a2da20262c8d647429cc10f0a641","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"66a8e1df3471deb2323c205dd1ba38fb9e72a2da20262c8d647429cc10f0a641","first_computed_at":"2026-05-17T23:58:56.126932Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:58:56.126932Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"QSxtmncM5OQTuJeDSk+62eJ9ix/ZmyusgbQSA5zuXxH/2AXm+CLT7w3QTIZlbugwoxcvpyfB5gFdr3om5svaDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:58:56.127448Z","signed_message":"canonical_sha256_bytes"},"source_id":"1803.00675","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:9a9a136ac09c8891d51c6361886cdc7b5f04eb938325dc6f99ba0c5fff6cbc3c","sha256:c387a99e02764fdb3adc918b0abd66e47994854a14e665839a5de7b8d4139c8d"],"state_sha256":"170a0fce6a867e7b1f9d551e41ca5851a84e0c2daad76d66cabef9fe658fc610"}