{"ID":23510318,"CreatedAt":"2026-09-18T02:21:44.056544415Z","UpdatedAt":"2026-09-18T02:21:44.056544415Z","DeletedAt":null,"paper_url":"https://arxiv.org/abs/2609.19266","arxiv_id":"2609.19266","title":"Strong coupling spectrum of $\\mathrm{AdS}_3\\times \\mathrm{S}^3$ from string field theory","abstract":"We consider type IIB string theory on $\\mathrm{AdS}_3\\times \\mathrm{S}^3\\times \\mathbb{T}^4$ in a large AdS radius expansion at arbitrary values of the relative RR and NS-NS fluxes. We develop a method for computing scaling dimensions in the dual CFT in this limit by combining a string field theory calculation, valid at finite quantized NS-NS flux but perturbative in RR flux, with a finite mixed-flux ansatz, which is constrained by worldsheet parity and motivated by classical string solutions. We apply the method to three families of states. In the pure-RR limit, our results agree both with a family of states computed using the worldsheet bootstrap and with another family computed using integrability.","short_abstract":"We consider type IIB string theory on $\\mathrm{AdS}_3\\times \\mathrm{S}^3\\times \\mathbb{T}^4$ in a large AdS radius expansion at arbitrary values of the relative RR and NS-NS fluxes. We develop a method for computing scaling dimensions in the dual CFT in this limit by combining a string field theory calculation, valid a...","url_abs":"https://arxiv.org/abs/2609.19266","url_pdf":"https://arxiv.org/pdf/2609.19266v1","authors":"[\"Luis F. Alday\",\"Shai M. Chester\",\"Kiarash Naderi\",\"De-liang Zhong\"]","published":"2026-09-16T18:00:02Z","proceeding":"hep-th","tasks":"[\"hep-th\"]","methods":"[]","has_code":false}