On exact solutions and singularities in string theory

Abstract

We construct two new classes of exact solutions to string theory which are not of the standard plane wave or gauged WZW type. Many of these solutions have curvature singularities. The first class includes the fundamental string solution, for which the string coupling vanishes near the singularity. This suggests that the singularity may not be removed by quantum corrections. The second class consists of hybrids of plane wave and gauged WZW solutions. We discuss a four dimensional example in detail.

45 pages, harvmac, Imperial/TP/93-94/38, NI94004 (minor corrections)

References in corpus (24)

• A WZW model based on a non-semi-simple group
• Exact Three Dimensional Black Holes in String Theory
• Duality and Dilaton
• Macroscopic superstrings as interpolating solitons
• Axial Vector Duality as a Gauge Symmetry and Topology Change in String Theory
• Conformally Exact Metric and Dilaton in String Theory on Curved Spacetime
• Conformal sigma models corresponding to gauged Wess-Zumino-Witten theories
• Gauged WZW models and Non-abelian duality
• Miens of The Three Dimensional Black Hole
• String Propagation in Gravitational Wave Backgrounds
• Effective action of gauged WZW model and exact string solutions
• String vacuum backgrounds with covariantly constant null Killing vector and 2d quantum gravity
• A Class of String Backgrounds as a Semiclassical Limit of WZW Models
• Four Dimensional Black Holes in String Theory
• Gauging a Non-Semi-Simple WZW Model
• Results on exact solutions of low energy string theory
• Dilaton shift under duality and torsion of elliptic complex
• Exact Duality in String Effective Action
• Conformally Exact Results for SL(2,R)\times SO(1,1)^{d-2}/SO(1,1) Coset Models
• On field redefinitions and exact solutions in string theory
• Exact Effective Action and Spacetime Geometry in Gauged WZW Models
• Antisymmetric tensor coupling and conformal invariance in sigma models corresponding to gauged WZNW theories
• Scattering of Macroscopic Heterotic Strings
• Classical Dynamics of Macroscopic Strings

Cited by in corpus (55)

• All supersymmetric solutions of minimal supergravity in five dimensions
• Black Holes and Solitons in String Theory
• All supersymmetric solutions of minimal supergravity in six dimensions
• A New Class of Exact Solutions in String Theory
• On singularities of spherically symmetric backgrounds in string theory
• Quantum Probes of Spacetime Singularities
• On deformations of AdS_n x S^n supercosets
• Extremal Black Holes As Fundamental Strings
• General class of BPS saturated dyonic black holes as exact superstring solutions
• Homogeneous Plane Waves
• A Solvable Irrelevant Deformation of $Ad{S}_3/CF{T}_2$
• Structural Issues in Quantum Gravity
• Superstrings on NS5 backgrounds, deformed AdS3 and holography
• Constant magnetic field in closed string theory: an exactly solvable model
• About a class of exact string backgrounds
• Composite BPS configurations of p-branes in 10 and 11 dimensions
• Exactly solvable string models of curved space-time backgrounds
• Melvin solution in string theory
• On (non)integrability of classical strings in p-brane backgrounds
• Orbifolds as Melvin Geometry
• On free energy of 2-d black hole in bosonic string theory
• Integrable 2d sigma models: quantum corrections to geometry from RG flow
• On First Order Formalism in String Theory
• Stringy Structure at the BPS Bound
• Extremal black holes as exact string solutions
• On the Singularity Structure and Stability of Plane Waves
• Curved branes from string dualities
• Fundamental Superstrings as Holograms
• Charged black holes in generalized dilaton-axion gravity
• Generalised chiral null models and rotating string backgrounds
• Exact SU(2)*U(1) Stringy Black Holes
• Exact string solutions and duality
• The 10-D chiral null model and the relation to 4-D string solutions
• Conformal symmetry and light flavor baryon spectra
• Type II Duality Symmetries in Six Dimensions
• The singularity problem in string theory
• The Embedding of Superstring Backgrounds in Einstein Gravity
• Integrable supersymmetric deformations of $\mathrm{Ad}{\mathrm{S}}_3\times {\mathrm{S}}^3\times {\mathrm{T}}^4$
• Duality and Four-Dimensional Black Holes
• Exact Type IIB Superstring Backgrounds
• A Conformal Field Theory of a Rotating Dyon
• On Some New Black String Solutions in Three Dimensions
• Regge trajectories of the charged string in a magnetic background
• K-Models and Type IIB Superstring Backgrounds
• Plane-parallel waves as duals of the flat background II: T-duality with spectators
• On type 0 string theory in solvable RR backgrounds
• The Heterotic Enhancon
• Generalised Garfinkle-Vachaspati Transform With Dilaton
• String-string duality for some black hole type solutions
• S-Duality and Exact Type IIB Superstring Backgrounds
• Moving holographic boundaries
• Three Dimensional Black Hole in the Low Energy Heterotic String Theory
• Hidden Finite Symmetries in String Theory and Duality of Dualities
• Solitonic d-5 brane and Vortex on the World-Sheet
• Surveying the Three-Dimensional Fixed Points of T-Duality