{"paper":{"title":"The free field realisation of the BVW string","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-th","authors_text":"Kiarash Naderi, Matthias R. Gaberdiel, Vit Sriprachyakul","submitted_at":"2022-02-23T10:16:53Z","abstract_excerpt":"The symmetric orbifold of $\\mathbb{T}^4$ was recently shown to be exactly dual to string theory on ${\\rm AdS}_3\\times {\\rm S}^3 \\times \\mathbb{T}^4$ with minimal ($k=1$) NS-NS flux. The worldsheet theory is best formulated in terms of the hybrid formalism of Berkovits, Vafa & Witten (BVW), in terms of which the ${\\rm AdS}_3\\times {\\rm S}^3$ factor is described by a $\\mathfrak{psu}(1,1|2)_k$ WZW model. At level $k=1$, $\\mathfrak{psu}(1,1|2)_1$ has a free field realisation that is obtained from that of $\\mathfrak{u}(1,1|2)_1$ upon setting a $\\mathfrak{u}(1)$ field, often called $Z$, to zero. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2202.11392","kind":"arxiv","version":1},"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/2202.11392/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"}