{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:LMWF6PQL7WJ6RZOPCPJR4FXPJL","short_pith_number":"pith:LMWF6PQL","schema_version":"1.0","canonical_sha256":"5b2c5f3e0bfd93e8e5cf13d31e16ef4af5ab79508a2be5e081c578c2ca9c91ca","source":{"kind":"arxiv","id":"1911.12353","version":2},"attestation_state":"computed","paper":{"title":"Qubit regularized $O(N)$ nonlinear sigma models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"hep-lat","authors_text":"Hersh Singh","submitted_at":"2019-11-27T18:53:43Z","abstract_excerpt":"Motivated by the prospect of quantum simulation of quantum field theories, we formulate the $O(N)$ nonlinear sigma model as a \"qubit\" model with an $(N+1)$-dimensional local Hilbert space at each lattice site. Using an efficient worm algorithm in the worldline formulation, we demonstrate that the model has a second-order critical point in $(2+1)$ dimensions, where the continuum physics of the nontrivial $O(N)$ Wilson-Fisher fixed point is reproduced. We compute the critical exponents $\\nu$ and $\\eta$ for the $O(N)$ qubit models up to $N=8$, and find excellent agreement with known results in li"},"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":"1911.12353","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"hep-lat","submitted_at":"2019-11-27T18:53:43Z","cross_cats_sorted":["quant-ph"],"title_canon_sha256":"13d9731d3f716b9f584c46aaf84012df58257a668f13aaafbf6d3d38eda11450","abstract_canon_sha256":"517b814f428fa6f854bd083b60bea8e0372bdd34cbdaf942f9d34f8cc6e95526"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:00:46.833709Z","signature_b64":"BET5ubHjaIR9PAmz+NYkREcMiCSILWXw54T6pRE86vIgWRiGZ/twM12gMdQzmWytG8aYNblVKJ+xCq0iHrsIAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5b2c5f3e0bfd93e8e5cf13d31e16ef4af5ab79508a2be5e081c578c2ca9c91ca","last_reissued_at":"2026-07-05T04:00:46.833339Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:00:46.833339Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Qubit regularized $O(N)$ nonlinear sigma models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["quant-ph"],"primary_cat":"hep-lat","authors_text":"Hersh Singh","submitted_at":"2019-11-27T18:53:43Z","abstract_excerpt":"Motivated by the prospect of quantum simulation of quantum field theories, we formulate the $O(N)$ nonlinear sigma model as a \"qubit\" model with an $(N+1)$-dimensional local Hilbert space at each lattice site. Using an efficient worm algorithm in the worldline formulation, we demonstrate that the model has a second-order critical point in $(2+1)$ dimensions, where the continuum physics of the nontrivial $O(N)$ Wilson-Fisher fixed point is reproduced. We compute the critical exponents $\\nu$ and $\\eta$ for the $O(N)$ qubit models up to $N=8$, and find excellent agreement with known results in li"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1911.12353","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1911.12353/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"1911.12353","created_at":"2026-07-05T04:00:46.833396+00:00"},{"alias_kind":"arxiv_version","alias_value":"1911.12353v2","created_at":"2026-07-05T04:00:46.833396+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1911.12353","created_at":"2026-07-05T04:00:46.833396+00:00"},{"alias_kind":"pith_short_12","alias_value":"LMWF6PQL7WJ6","created_at":"2026-07-05T04:00:46.833396+00:00"},{"alias_kind":"pith_short_16","alias_value":"LMWF6PQL7WJ6RZOP","created_at":"2026-07-05T04:00:46.833396+00:00"},{"alias_kind":"pith_short_8","alias_value":"LMWF6PQL","created_at":"2026-07-05T04:00:46.833396+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2608.08181","citing_title":"Hamiltonian spectra in quantum computers through the generalized eigenvalue method","ref_index":11,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL","json":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL.json","graph_json":"https://pith.science/api/pith-number/LMWF6PQL7WJ6RZOPCPJR4FXPJL/graph.json","events_json":"https://pith.science/api/pith-number/LMWF6PQL7WJ6RZOPCPJR4FXPJL/events.json","paper":"https://pith.science/paper/LMWF6PQL"},"agent_actions":{"view_html":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL","download_json":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL.json","view_paper":"https://pith.science/paper/LMWF6PQL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1911.12353&json=true","fetch_graph":"https://pith.science/api/pith-number/LMWF6PQL7WJ6RZOPCPJR4FXPJL/graph.json","fetch_events":"https://pith.science/api/pith-number/LMWF6PQL7WJ6RZOPCPJR4FXPJL/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL/action/storage_attestation","attest_author":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL/action/author_attestation","sign_citation":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL/action/citation_signature","submit_replication":"https://pith.science/pith/LMWF6PQL7WJ6RZOPCPJR4FXPJL/action/replication_record"}},"created_at":"2026-07-05T04:00:46.833396+00:00","updated_at":"2026-07-05T04:00:46.833396+00:00"}