Boundary states in the Nappi-Witten model

Abstract

We investigate D-branes in the Nappi-Witten model. Classically symmetric D-branes are classified by the (twisted) conjugacy classes of the Nappi-Witten group, which specify the geometry of the corresponding D-branes. Quantum description of the D-branes is given by boundary states, and we need one point functions of closed strings to construct the boundary states. We compute the one point functions solving conformal bootstrap constraints, and check that the classical limit of the boundary states reproduces the geometry of D-branes.

19 pages, no figure; minor changes, references added

References in corpus (4)

• D-branes and BCFT in Hpp-wave backgrounds
• D-branes in 2d Lorentzian black hole
• Superstrings on NSNS PP-Waves and Their CFT Duals
• D-branes in the NS5 Near-horizon pp-Wave Background

Cited by in corpus (5)

• D-branes and BCFT in Hpp-wave backgrounds
• Isometric Embeddings and Noncommutative Branes in Homogeneous Gravitational Waves
• Inner brane: A D3-brane in the Nappi-Witten model from an inner group automorphism
• Plane waves from double extended spacetimes
• The symmetric branes of the H4 WZW model