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Fundamental strings in Dp–Dqbrane systems

Authors
Journal
Nuclear Physics B
0550-3213
Publisher
Elsevier
Publication Date
Volume
583
Identifiers
DOI: 10.1016/s0550-3213(00)00237-6
Keywords
  • Methods In Theoretical Physics
Disciplines
  • Mathematics

Abstract

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.

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