On supersymmetric interfaces for string theory

Abstract

We construct the world-sheet interface which preserves space-time supersymmetry in type II superstring theories in the Green-Schwarz formalism. This is an analog of the conformal interface in two-dimensional conformal field theory. We show that a class of the supersymmetric interfaces generates T-dualities of type II theories, and that these interfaces have a geometrical interpretation in the doubled target space. We compute the partition function with a pair of the supersymmetric interfaces inserted, from which we read off the spectrum of the modes coupled to the interfaces and the Casimir energy between them. We also derive the transformation rules under which a set of D-branes is transformed to another by the interface.

1+23 pages, 1 figure; (v2) added comments, made changes in presentation

References in corpus (9)

• Duality and defects in rational conformal field theory
• Topological defects for the free boson CFT
• Fusion of conformal interfaces
• Entanglement through conformal interfaces
• Bi-branes: Target Space Geometry for World Sheet topological Defects
• Some remarks on defects and T-duality
• Superconformal defects in the tricritical Ising model
• Defects, dualities and the geometry of strings via gerbes. I. Dualities and state fusion through defects
• Geometry of Topological Defects of Two-dimensional Sigma Models

Cited by in corpus (8)

• A worldsheet extension of O(d,d;Z)
• Non-supersymmetric Asymmetric Orbifolds with Vanishing Cosmological Constant
• Entanglement entropy at holographic interfaces
• More on Non-supersymmetric Asymmetric Orbifolds with Vanishing Cosmological Constant
• Lie algebra lattices and strings on T-folds
• Defects, Super-Poincaré line bundle and Fermionic T-duality
• Non-geometric Backgrounds Based on Topological Interfaces
• Interactions of strings on a T-fold