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arxiv: hep-th/0409185 · v3 · submitted 2004-09-17 · ✦ hep-th

Boundary states in the Nappi-Witten model

classification ✦ hep-th
keywords d-branesboundarystatesnappi-wittenfunctionsgeometrymodelpoint
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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.

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