A Large Class of New Gravitational and Axionic Backgrounds for Four-Dimensional Superstrings

Abstract

A large class of new 4-D superstring vacua with non-trivial/singular geometries, spacetime supersymmetry and other background fields (axion, dilaton) are found. Killing symmetries are generic and are associated with non-trivial dilaton and antisymmetric tensor fields. Duality symmetries preserving N=2 superconformal invariance are employed to generate a large class of explicit metrics for non-compact 4-D Calabi-Yau manifolds with Killing symmetries.

LateX file, 34pp., (v5) Some misprints corrected in sections 3.1, 3.2 as pointed out in the paper of Hori and Kapustin (hep-th/0203147). Some comsetic changes also made in the same sections

References in corpus (5)

• Duality Symmetric Actions
• Axial Vector Duality as a Gauge Symmetry and Topology Change in String Theory
• A Problem with Non-Abelian Duality
• Cosmological String Backgrounds
• Construction of String Solutions around Non-trivial Backgrounds

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