{"paper":{"title":"BMS-like algebras: canonical realisations and BRST quantisation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["math.RA","math.RT"],"primary_cat":"hep-th","authors_text":"Carlos Batlle, Girish Vishwa, Joaquim Gomis, Jos\\'e Figueroa-O'Farrill","submitted_at":"2024-11-22T11:33:24Z","abstract_excerpt":"We generalise BMS algebras in three dimensions by the introduction of an arbitrary real parameter $\\lambda$, recovering the standard algebras (BMS, extended BMS and Weyl-BMS) for $\\lambda=-1$. We exhibit a realisation of the (centreless) Weyl $\\lambda$-BMS algebra in terms of the symplectic structure on the space of solutions of the massless Klein-Gordon equation in $2+1$, using the eigenstates of the spacetime momentum operator. The quadratic Casimir of the Lorentz algebra plays an essential r\\^ole in the construction. The Weyl $\\lambda$-BMS algebra admits a three-parameter family of central "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2411.14866","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/2411.14866/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"}