2017/11/30 by Gaston Giribet · 78 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Correlation function (quantum field theory) #Cosmology and Gravitation Theories #Deformation (meteorology) #Dilaton #Noncommutative and Quantum Gravity Theories #Operator (biology) #Spectrum (functional analysis) #String (physics) #String theory #TRACE (psycholinguistics) #Worldsheet #hep-th
paper · pdf · doi:10.1007/jhep02(2018)114
published in Journal of High Energy Physics 2018(2) (Springer Nature) · 17 pages. v3 references and comments added. Version to appear in JHEP
openalex created_date 2017/11/17 · openalex publication_date 2018/02/01 · arxiv created 2018/02/14 · arxiv updated 2018/04/04 · openalex updated_date 2026/08/06
A solvable irrelevant deformation of AdS3/CFT2 correspondence leading to a theory with Hagedorn spectrum at high energy has been recently proposed. It consists of a single trace deformation of the boundary theory, which is inspired by the recent work on solvable TT deformations of two-dimensional CFTs. Thought of as a worldsheet σ-model, the interpretation of the deformed theory from the bulk viewpoint is that of string theory on a background that interpolates between AdS3 in the IR and a linear dilaton vacuum of little string theory in the UV. The insertion of the operator that realizes the deformation in the correlation functions produces a logarithmic divergence, leading to the renormalization of the primary operators, which thus acquire an anomalous dimension. We compute this anomalous dimension explicitly, and this provides us with a direct way of determining the spectrum of the theory. We discuss this and other features of the correlation functions in presence of the deformation.