2003/05/31 by Ulf Lindström, Ulf Lindstrom, Maxim Zabzine · 4 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Coset #Cosmology and Gravitation Theories #Discrete mathematics #Geometry #Massless particle #Mathematical physics #Mathematics #Minkowski space #Noncommutative and Quantum Gravity Theories #Physics #Quantum mechanics #Space (punctuation) #Spin (aerodynamics) #String (physics) #String theory #Symmetry (geometry) #Theoretical physics #hep-th
paper · pdf · doi:10.1016/j.physletb.2004.01.035
published as Phys.Lett. B584 (2004) 178-185 · latex, 13 pages; important improvements are made in the discussion of HS symmetries for the group and AdS manifolds, references added, the version to be published in Phys.Let.B
arxiv created 2004/01/16 · openalex publication_date 2004/02/07 · arxiv updated 2010/04/05 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We discuss the notion of tensionless limit in quantum bosonic string theory, especially in flat Minkowski space, noncompact group manifolds (e.g., SL(2,R)) and coset manifolds (e.g., AdSd). We show that in curved space typically there exists a critical value of the tension which is related to the critical value of the level of the corresponding affine algebra. We argue that at the critical level the string theory becomes tensionless and that there exists a huge new symmetry of the theory. We discuss the appearance of the higher spin massless states at the critical level.