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  Boundary deformation theory and moduli spaces of D-branes

Recknagel, A., & Schomerus, V. (1999). Boundary deformation theory and moduli spaces of D-branes. Nuclear Physics B, 545(1-3), 233-282.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-58E9-F Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-58EA-D
Genre: Journal Article

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Recknagel, Andreas1, Author
Schomerus, Volker1, Author
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1Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society, ou_24014              

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 Abstract: Boundary conformal field theory is the suitable framework for a microscopic treatment of D-branes in arbitrary CFT backgrounds. In this work, we develop boundary deformation theory in order to study the changes of boundary conditions generated by marginal boundary fields. The deformation parameters may be regarded as continuous moduli of D-branes. We identify a large class of boundary fields which are shown to be truly marginal, and we derive closed formulas describing the associated deformations to all orders in perturbation theory. This allows us to study the global topology properties of the moduli space rather than local aspects only. As an example, we analyse in detail the moduli space of c = 1 theories, which displays various stringy phenomena.

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 Dates: 1999
 Publication Status: Published in print
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 Identifiers: eDoc: 206223
Other: 16449
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Title: Nuclear Physics B
Source Genre: Journal
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Pages: - Volume / Issue: 545 (1-3) Sequence Number: - Start / End Page: 233 - 282 Identifier: -