Fundamental strings in Dp-Dq brane systems

Fröhlich, Jürg; Grandjean, Olivier; Recknagel, Andreas; Schomerus, Volker

doi:10.1016/S0550-3213(00)00237-6

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Fundamental strings in Dp-Dq brane systems

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Recknagel, Andreas
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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Nuclear-Physics-B_583_1-2.pdf
(Publisher version), 423KB

9912079v2.pdf
(Preprint), 320KB

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Citation

Fröhlich, J., Grandjean, O., Recknagel, A., & Schomerus, V. (2000). Fundamental strings in Dp-Dq brane systems. Nuclear Physics B, 583(1-2), 381-410. doi:10.1016/S0550-3213(00)00237-6.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-570B-B

Abstract

We study conformal field theory correlation functions relevant for string diagrams with open strings that stretch between several parallel branes of different dimensions. In the framework of conformal field theory, they involve boundary condition changing twist fields which intertwine between Neumann and Dirichlet conditions. A Knizhnik–Zamolodchikov-like differential equation for correlators of such boundary twist fields and ordinary string vertex operators is derived, and explicit integral formulas for its solutions are provided.