Duality and $O(d,d)$ Symmetries in String Theory

Abstract

The evolution of a closed bosonic string is envisaged in the time-dependent background of its massless modes. A duality transformation is implemented on the spatial component of string coordinates to obtain a dual string. It is shown that the evolution equations are manifestly $O(d,d)$ invariant. The tree level string effective actions for the original and the dual string theory are shown to be equivalent.

11 pages

References in corpus (4)

• Elements of String Cosmology
• Duality and Dilaton
• $O(d,d)$-Covariant String Cosmology
• String Effective Action and Two Dimensional Charged Black Hole

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• Equations of Motion in Double Field Theory: From Particles to Scale Factors
• Duality Symmetry of String Theory: A Worldsheet Perspective
• On the Rotating Charged Black String Solution
• T-duality of NSR superstring: The worldsheet perspective
• Noncommutative Open strings, D-brane and Duality
• Scalar field fluctuations in Pre-Big-Bang Cosmologies
• Massive Stringy States and T-duality Symmetry
• Supersymmetry and Quantum Cosmology
• T-duality and Scattering of Stringy States
• Duality Invariant Superstring Actions