{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2012:XO4FLHUC776VC2OT7MMQ25QTLT","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":"45373766f5aeda6f297d8fbd6aaebac8cf09870a3579b6156dbe0c5cf7e0e266","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-01-24T08:22:59Z","title_canon_sha256":"e64bae36d80324958261b4ecd367e36d89f416ed570782d9693dcfcadcbc9d0c"},"schema_version":"1.0","source":{"id":"1201.4926","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1201.4926","created_at":"2026-05-18T04:00:49Z"},{"alias_kind":"arxiv_version","alias_value":"1201.4926v1","created_at":"2026-05-18T04:00:49Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1201.4926","created_at":"2026-05-18T04:00:49Z"},{"alias_kind":"pith_short_12","alias_value":"XO4FLHUC776V","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_16","alias_value":"XO4FLHUC776VC2OT","created_at":"2026-05-18T12:27:27Z"},{"alias_kind":"pith_short_8","alias_value":"XO4FLHUC","created_at":"2026-05-18T12:27:27Z"}],"graph_snapshots":[{"event_id":"sha256:6fd6705215240731fb97faae2e59b782182f099056c4c22b6b2b8e9cc9e7fe6a","target":"graph","created_at":"2026-05-18T04:00:49Z","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":"It has been recently shown that the particle-hole symmetric Anderson impurity model can be mapped onto a $Z_2$ slave-spin theory without any need of additional constraints. Here we prove by means of Numerical Renormalization Group that the slave-spin behaves in this model like a two-level system coupled to a sub-ohmic dissipative environment. It follows that the $Z_2$ symmetry gets spontaneously broken at zero temperature, which we find can be identified with the on-set of Kondo coherence, being the Kondo temperature proportional to the square of the order parameter. Since the model is numeric","authors_text":"Italy), Michele Fabrizio (SISSA&ICTP, Pier Paolo Baruselli (SISSA, Trieste","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-01-24T08:22:59Z","title":"Sub-ohmic two-level system representation of the Kondo effect"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1201.4926","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":"sha256:1a59b53ff15928062327c9e692fd6835cf48b5a2624d4bb9928ea6201f0bdf9c","target":"record","created_at":"2026-05-18T04:00:49Z","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":"45373766f5aeda6f297d8fbd6aaebac8cf09870a3579b6156dbe0c5cf7e0e266","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.str-el","submitted_at":"2012-01-24T08:22:59Z","title_canon_sha256":"e64bae36d80324958261b4ecd367e36d89f416ed570782d9693dcfcadcbc9d0c"},"schema_version":"1.0","source":{"id":"1201.4926","kind":"arxiv","version":1}},"canonical_sha256":"bbb8559e82fffd5169d3fb190d76135cecc424b30d357f8ab0e976ac9c6e9913","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"bbb8559e82fffd5169d3fb190d76135cecc424b30d357f8ab0e976ac9c6e9913","first_computed_at":"2026-05-18T04:00:49.045680Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T04:00:49.045680Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"AK/v0iN2y8i8FOnTJ3Ll9qYnCV02s/PGZk6USsFVu+fjwV1q6Y79n+FTAdTpGW2/m1KJ47TqQKDwJK0EoY56AA==","signature_status":"signed_v1","signed_at":"2026-05-18T04:00:49.046183Z","signed_message":"canonical_sha256_bytes"},"source_id":"1201.4926","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1a59b53ff15928062327c9e692fd6835cf48b5a2624d4bb9928ea6201f0bdf9c","sha256:6fd6705215240731fb97faae2e59b782182f099056c4c22b6b2b8e9cc9e7fe6a"],"state_sha256":"708a31e49dd312537211cc3295aef5cba3112b613e8dbb4d4ad750498f9d4aa8"}