{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2014:FE3WWT57HX3OVMQD2DCAEL3MYM","short_pith_number":"pith:FE3WWT57","canonical_record":{"source":{"id":"1408.2150","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-08-09T20:31:53Z","cross_cats_sorted":[],"title_canon_sha256":"60f36064b011893a3a3016c3f952962ec386302a4a70b10ce0135eff0b258f2e","abstract_canon_sha256":"4908002a5734299554a98d2a015fa4440f9dd8023719f29403bcecaebbd85e34"},"schema_version":"1.0"},"canonical_sha256":"29376b4fbf3df6eab203d0c4022f6cc30543e8a03cd71323c0ce7e15993e0244","source":{"kind":"arxiv","id":"1408.2150","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.2150","created_at":"2026-05-18T02:30:31Z"},{"alias_kind":"arxiv_version","alias_value":"1408.2150v2","created_at":"2026-05-18T02:30:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.2150","created_at":"2026-05-18T02:30:31Z"},{"alias_kind":"pith_short_12","alias_value":"FE3WWT57HX3O","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FE3WWT57HX3OVMQD","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FE3WWT57","created_at":"2026-05-18T12:28:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2014:FE3WWT57HX3OVMQD2DCAEL3MYM","target":"record","payload":{"canonical_record":{"source":{"id":"1408.2150","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-08-09T20:31:53Z","cross_cats_sorted":[],"title_canon_sha256":"60f36064b011893a3a3016c3f952962ec386302a4a70b10ce0135eff0b258f2e","abstract_canon_sha256":"4908002a5734299554a98d2a015fa4440f9dd8023719f29403bcecaebbd85e34"},"schema_version":"1.0"},"canonical_sha256":"29376b4fbf3df6eab203d0c4022f6cc30543e8a03cd71323c0ce7e15993e0244","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:30:31.724261Z","signature_b64":"fWF7EFswqQvGMWtSlH4vH2hW4RrRKtx4l5/02VcLSTZR+UwCFeed/Qr1gAHXNcJBPb7HEajpXuhj0kUyWwQdAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"29376b4fbf3df6eab203d0c4022f6cc30543e8a03cd71323c0ce7e15993e0244","last_reissued_at":"2026-05-18T02:30:31.723664Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:30:31.723664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1408.2150","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:30:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3TuzMs1AlU5q7JYBuhotOqbvjMj3CW2goX5BYs0KLFHf9+XvAeBo8nFyRXs/988MWZCbhZUr7+3jmzxHRAPrCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:25:40.642854Z"},"content_sha256":"c58289cda7ef5d85b2f18197e5dfb2c988dfa8baab29327340e981b0d824ee03","schema_version":"1.0","event_id":"sha256:c58289cda7ef5d85b2f18197e5dfb2c988dfa8baab29327340e981b0d824ee03"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2014:FE3WWT57HX3OVMQD2DCAEL3MYM","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Beyond extended dynamical mean-field theory: Dual boson approach to the two-dimensional extended Hubbard model","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.str-el","authors_text":"Alexander I. Lichtenstein, Erik G. C. P. van Loon, Hartmut Hafermann, Mikhail I. Katsnelson, Olivier Parcollet","submitted_at":"2014-08-09T20:31:53Z","abstract_excerpt":"The dual boson approach [Ann. Phys. 327, 1320 (2012)] provides a means to construct a diagrammatic expansion around the extended dynamical mean-field theory (EDMFT). In this paper, we present the numerical implementation of the approach and apply it to the extended Hubbard model with nearest-neighbor interaction $V$. We calculate the EDMFT phase diagram and study the effect of diagrams beyond EDMFT on the transition to the charge-ordered phase. Including diagrammatic corrections to the EDMFT polarization shifts the EDMFT phase boundary to lower values of $V$. The approach interpolates between "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.2150","kind":"arxiv","version":2},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T02:30:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"pjrYzyacVZA+bZNw43cmHoG+0Q0fed8jWkvOEhxcqFlKiQsdCoaB1V17ATakYJm+GTqobVVzNcsTF7tNAHr7AA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-30T05:25:40.643195Z"},"content_sha256":"1c0cb4e2f5bbe55b6231c402bdc143791d179c81ebad12ba5d5404a41eafe89d","schema_version":"1.0","event_id":"sha256:1c0cb4e2f5bbe55b6231c402bdc143791d179c81ebad12ba5d5404a41eafe89d"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FE3WWT57HX3OVMQD2DCAEL3MYM/bundle.json","state_url":"https://pith.science/pith/FE3WWT57HX3OVMQD2DCAEL3MYM/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FE3WWT57HX3OVMQD2DCAEL3MYM/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-05-30T05:25:40Z","links":{"resolver":"https://pith.science/pith/FE3WWT57HX3OVMQD2DCAEL3MYM","bundle":"https://pith.science/pith/FE3WWT57HX3OVMQD2DCAEL3MYM/bundle.json","state":"https://pith.science/pith/FE3WWT57HX3OVMQD2DCAEL3MYM/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FE3WWT57HX3OVMQD2DCAEL3MYM/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FE3WWT57HX3OVMQD2DCAEL3MYM","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":"4908002a5734299554a98d2a015fa4440f9dd8023719f29403bcecaebbd85e34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-08-09T20:31:53Z","title_canon_sha256":"60f36064b011893a3a3016c3f952962ec386302a4a70b10ce0135eff0b258f2e"},"schema_version":"1.0","source":{"id":"1408.2150","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1408.2150","created_at":"2026-05-18T02:30:31Z"},{"alias_kind":"arxiv_version","alias_value":"1408.2150v2","created_at":"2026-05-18T02:30:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1408.2150","created_at":"2026-05-18T02:30:31Z"},{"alias_kind":"pith_short_12","alias_value":"FE3WWT57HX3O","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FE3WWT57HX3OVMQD","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FE3WWT57","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:1c0cb4e2f5bbe55b6231c402bdc143791d179c81ebad12ba5d5404a41eafe89d","target":"graph","created_at":"2026-05-18T02:30:31Z","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":"The dual boson approach [Ann. Phys. 327, 1320 (2012)] provides a means to construct a diagrammatic expansion around the extended dynamical mean-field theory (EDMFT). In this paper, we present the numerical implementation of the approach and apply it to the extended Hubbard model with nearest-neighbor interaction $V$. We calculate the EDMFT phase diagram and study the effect of diagrams beyond EDMFT on the transition to the charge-ordered phase. Including diagrammatic corrections to the EDMFT polarization shifts the EDMFT phase boundary to lower values of $V$. The approach interpolates between ","authors_text":"Alexander I. Lichtenstein, Erik G. C. P. van Loon, Hartmut Hafermann, Mikhail I. Katsnelson, Olivier Parcollet","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-08-09T20:31:53Z","title":"Beyond extended dynamical mean-field theory: Dual boson approach to the two-dimensional extended Hubbard model"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1408.2150","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:c58289cda7ef5d85b2f18197e5dfb2c988dfa8baab29327340e981b0d824ee03","target":"record","created_at":"2026-05-18T02:30:31Z","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":"4908002a5734299554a98d2a015fa4440f9dd8023719f29403bcecaebbd85e34","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2014-08-09T20:31:53Z","title_canon_sha256":"60f36064b011893a3a3016c3f952962ec386302a4a70b10ce0135eff0b258f2e"},"schema_version":"1.0","source":{"id":"1408.2150","kind":"arxiv","version":2}},"canonical_sha256":"29376b4fbf3df6eab203d0c4022f6cc30543e8a03cd71323c0ce7e15993e0244","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"29376b4fbf3df6eab203d0c4022f6cc30543e8a03cd71323c0ce7e15993e0244","first_computed_at":"2026-05-18T02:30:31.723664Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:30:31.723664Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"fWF7EFswqQvGMWtSlH4vH2hW4RrRKtx4l5/02VcLSTZR+UwCFeed/Qr1gAHXNcJBPb7HEajpXuhj0kUyWwQdAA==","signature_status":"signed_v1","signed_at":"2026-05-18T02:30:31.724261Z","signed_message":"canonical_sha256_bytes"},"source_id":"1408.2150","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:c58289cda7ef5d85b2f18197e5dfb2c988dfa8baab29327340e981b0d824ee03","sha256:1c0cb4e2f5bbe55b6231c402bdc143791d179c81ebad12ba5d5404a41eafe89d"],"state_sha256":"80496687cb4fdf76cef939178948350744837cc6317dac5290a8a5c73cd48587"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zFb2VF5mq7GnMXX0654Os5qNxMKmv6Rm04v5zdx2UzFZHHYPaG8whaXm/IF/5eM/1YjW/eECZhCEi2DA33yhBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-30T05:25:40.645342Z","bundle_sha256":"458044392592cd0c8c3fe7cf33a2a1e5fbb7aa937f25c68da72f95f036ead9e1"}}