DMCA
Boundary deformation theory and moduli spaces of D-branes (1999)
| Citations: | 137 - 26 self |
BibTeX
@TECHREPORT{Recknagel99boundarydeformation,
author = {Andreas Recknagel and Volker Schomerus},
title = {Boundary deformation theory and moduli spaces of D-branes},
institution = {},
year = {1999}
}
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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.
Keyphrases
modulus space boundary deformation theory closed formula various stringy phenomenon microscopic treatment associated deformation global topology property arbitrary cft background boundary conformal field theory deformation parameter boundary condition continuous modulus local aspect perturbation theory large class boundary field suitable framework marginal boundary field
