On U-Folds and Their Construction

2025/04/30 by Stefano Maurelli, Maurelli, Stefano, R. Noris +5
Mathematics · Physics and Astronomy · #Algebraic structures and combinatorial models #Black Holes and Theoretical Physics #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #Homotopy and Cohomology in Algebraic Topology

paper · pdf · doi:10.48550/arxiv.2504.21590

openalex publication_date 2025/04/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We review a general paradigm for constructing U-fold backgrounds in (dimensionally reduced) Type IIB superstring theory, of the form \rm AdS_d-1× S¹× S^d, with a monodromy along S¹ in the string-duality group. We also consider a special instance with d=3 in Type IIB superstring theory, discuss its ten-dimensional uplift and assess its supersymmetry.

Citations

• Blackening S-folds
• U-Folds From Geodesics in Moduli Space
• Type IIB S-folds: flat deformations, holography and stability
• Consistent Kaluza-Klein Truncations via Exceptional Field Theory
• Exceptional Field Theory II: E₇₍₇₎
• Exceptional Form of D=11 Supergravity
• Evidence for a family of SO(8) gauged supergravity theories
• On the vacua of N = 8 gauged supergravity in 4 dimensions
• Half-BPS Solutions locally asymptotic to AdS₃ x S³ and interface conformal field theories
• Lectures on gauged supergravity and flux compactifications
• S-Duality of Boundary Conditions In N=4 Super Yang-Mills Theory
• Exact half-BPS Type IIB interface solutions I: Local solution and supersymmetric Janus
• Compactifications with S-duality twists
• Open Strings
• The D1/D5 System And Singular CFT
• Unity of superstring dualities
• String Theory on K3 Surfaces

Related

• U-Folds From Geodesics in Moduli Space
• The AdS₅ × S⁵ Superstring
• Supersymmetric AdS Backgrounds in String and M-theory
• Yang-Baxter deformations and string dualities
• SL(2,Z) S-duality of Super D-string Action in Type IIB Supergravity Background