{"schema":"sb.node.v1","id":"sb:e/0c3825eb2e30ab91b124ed72","kind":"entity","label":{"text":"hamiltonian","locale":"en"},"identity":{"anchor":"label:en:hamiltonian","strength":"label"},"asOf":{"knowledgeCutoff":"2026-10-24T15:51:46.078651+00:00","releaseId":"sb-d781227ac95a","snapshot":"deploy 022c05ba27117a3a6b65e27fb3db1be98d7b5a83"},"lens":{"kind":"public"},"build":{"plane":"projected","builtFrom":["entity_graph.slim.json","entity_receipts (deploy asset)","event_graph.json","truth_records (deploy asset)","corroborated_record.json"],"rule":"node-projection.entity@v1"},"standing":{"evidence":{"supporting":57,"separatePublishers":8,"basis":"documents that mention the subject and the outlets that carried them; a mention is evidence the referent is in use, not evidence about any claim","receiptsOnTopic":{"state":"partial","share":0.088,"named":5,"of":57,"basis":"documents whose own title or summary lead names the subject, over every counted document that mentions it anywhere (the entity graph's measurement); receipts are drawn only from rows whose own title or URL names the subject (the entity graph's subject gate)","blind":["only 9% of the 57 documents measured name the subject in their own text; the rest mention it in passing, so standing.evidence.supporting overstates coverage about it"]}},"admission":{"state":"provisional","kind":"observed","kindBasis":"no-vocabulary-row","policy":"promotion (observed tier; not promoted)","reason":"seen recurring in the corpus and kept in the graph at the observation bar; not promoted into the vocabulary"},"disposition":{"state":"served","reason":"public record"},"validity":{"from":"2026-09-03","to":"2026-10-23","basis":"first and last day we saw it mentioned; not the subject's own lifetime"},"measurement":{"state":"partial","blind":["assertion coverage 0: about 100% of mentions carry no typed assertion"]}},"dimensions":{"domains":["quantum_computing"],"activeDays":24,"assertions":{}},"up":[],"upNote":"An entity is a root: it is contained by nothing. Pan out by following R.","children":{"count":4,"byKind":{"observation":4},"items":[{"id":"sb:o/36bcc31f16f4daa9e4e86371","kind":"observation","label":"Quantum Zeitgeist · 2026-10-16 · Sparse Hamiltonians can be learned with slower quantum controls","url":"https://quantumzeitgeist.com/korea-advanced-sparse-hamiltonians-learned-slower/","match":{"surface":"title","basis":"admitted by the entity graph's subject gate (title or URL); the headline names the subject as whole words (the door's on-topic test)"}},{"id":"sb:o/11b9492ed6abcb7c1f64d6dc","kind":"observation","label":"Quantum Zeitgeist · 2026-10-14 · New method hits a theoretical limit for quantum algorithm sampling cost","url":"https://quantumzeitgeist.com/hamiltonian-quantum-algorithm-sampling-cost-method/","match":{"surface":"url","basis":"admitted by the entity graph's subject gate (title or URL); the headline does not name the subject by the door's on-topic test, the URL path does"}},{"id":"sb:o/f72efab9e365113a44f1f849","kind":"observation","label":"arXiv · 2026-10-07 · Magnus: neutrino oscillation probabilities for any Hermitian Hamiltonian, any number of flavors, and any matter profile","url":"https://arxiv.org/abs/2610.07159","match":{"surface":"title","basis":"admitted by the entity graph's subject gate (title or URL); the headline names the subject as whole words (the door's on-topic test)"}},{"id":"sb:o/cd0bb39b6c7c09d93957c396","kind":"observation","label":"Quantum Zeitgeist · 2026-09-18 · Quantum States Imply One-Way Functions, Blocking Route to Microcrypt Security","url":"https://quantumzeitgeist.com/hamiltonian-phase-states-imply-one-way-functions/","match":{"surface":"url","basis":"admitted by the entity graph's subject gate (title or URL); the headline does not name the subject by the door's on-topic test, the URL path does"}}],"cursor":null,"order":"newest first; we keep the 4 newest receipts for this entity whose own title or URL (the entity graph's subject gate) names it; each says which in match. Its other observations are counted in standing.evidence.supporting but are not addressable in v1"},"relations":{"count":10,"byKind":{"co-mentioned":10},"items":[{"kind":"relation","label":"co-mentioned with quantum computing (30 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/e490cc73814b37856595e85f"},{"kind":"relation","label":"co-mentioned with quantum information (21 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/c73d50e60064bd13ed9f71f5"},{"kind":"relation","label":"co-mentioned with hamiltonians (15 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/43ab3323c1b4f413cd52b9ed"},{"kind":"relation","label":"co-mentioned with error correction (14 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/0bb156d784756bdcd0a96a81"},{"kind":"relation","label":"co-mentioned with quantum error correction (14 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/2f3a18db76321fc228b4c700"},{"kind":"relation","label":"co-mentioned with ai (13 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/5991a124ed52edc096e070a1"},{"kind":"relation","label":"co-mentioned with quantum advantage (10 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/56bae11897ea3d08f2acc24b"},{"kind":"relation","label":"co-mentioned with quantum technologies (10 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/803219b96d12f1736f40aca1"},{"kind":"relation","label":"co-mentioned with ising (9 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/6f16302ed2f1440647f7fb11"},{"kind":"relation","label":"co-mentioned with pauli (9 documents)","role":"co-mentioned","relationKind":"co-mentioned","members":2,"id":"sb:r/20a9e98eea039b702e870c56"}],"cursor":null,"order":"situations first, then claims (the subject's own maintained record, then site-wide corroborated clusters; each label ends with its standing), then co-mentions by shared documents, descending. Co-mentions are the ten strongest the entity graph keeps per entity"},"edge":{"state":"continues"},"links":{"rest":"/api/v1/node/e/0c3825eb2e30ab91b124ed72","mcp":"traverse {\"id\":\"sb:e/0c3825eb2e30ab91b124ed72\"}","page":"/entity/hamiltonian/"},"limits":{"levelsPerCall":1,"pageSize":10,"maxPageSize":50,"membersMax":50,"statement":"One level per call: depth is 1 and only 1, and there is no whole-graph dump. pageSize 1-50 (default 10); a page limit is a cursor, never an edge. Members are listed up to 50. At most 60 traverse calls a minute per caller (runaway-loop protection, not a meter). One knowledge cutoff is served: the deploy's."},"actions":[{"verb":"unfold","lit":true,"effect":"read","layer":"free-record","call":"traverse {\"id\":\"sb:e/0c3825eb2e30ab91b124ed72\",\"level\":\"children\"}"},{"verb":"fold","lit":true,"effect":"read","layer":"free-record","call":"traverse {\"id\":\"sb:e/0c3825eb2e30ab91b124ed72\"}"},{"verb":"panOut","lit":false,"effect":"read","layer":"free-record","reason":"An entity is a root: it is contained by nothing. Pan out by following R."},{"verb":"follow","lit":true,"effect":"read","layer":"free-record","call":"traverse {\"id\":\"sb:e/0c3825eb2e30ab91b124ed72\",\"level\":\"relations\"}"},{"verb":"receipts","lit":false,"effect":"read","layer":"free-record","reason":"receipts are the observations below this node; unfold to reach them"},{"verb":"edge","lit":true,"effect":"read","layer":"free-record","call":"traverse {\"id\":\"sb:e/0c3825eb2e30ab91b124ed72\"}"},{"verb":"asOf","lit":false,"effect":"read","layer":"free-record","reason":"v1 serves one knowledge cutoff, this deploy's; walking an earlier cutoff needs retained history, which v1 does not keep"},{"verb":"switchObserver","lit":false,"effect":"read","layer":"free-record","reason":"the public record is the same for every observer; traversal through a Watch's lens is not served in v1"},{"verb":"readOriginal","lit":false,"effect":"read","layer":"free-record","reason":"no translation is applied on this node; every label is the source's own text"},{"verb":"save","lit":false,"effect":"watch-declaration","layer":"watch","reason":"saving applies to a configured Watch; configure one around this node first (free), then save it"},{"verb":"deliver","lit":false,"effect":"watch-declaration","layer":"watch","reason":"delivery applies to a saved Watch"},{"verb":"format","lit":false,"effect":"watch-declaration","layer":"watch","reason":"output format applies to a saved Watch"},{"verb":"deltaR","lit":false,"effect":"read","layer":"watch","reason":"Delta R needs a saved Watch with a previous reading"},{"verb":"read","lit":false,"effect":"read","layer":"one-time-read","reason":"one-time Reads are not offered through this door; use ask"}]}