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We have decided to discontinue the publication of preprints on our preprint server as of 1 March 2024. The publication culture within mathematics has changed so much due to the rise of repositories such as ArXiV (www.arxiv.org) that we are encouraging all institute members to make their preprints available there. An institute's repository in its previous form is, therefore, unnecessary. The preprints published to date will remain available here, but we will not add any new preprints here.

MiS Preprint
60/1998

Boundary deformation theory and moduli spaces of D-branes

Andreas Recknagel and Volker Schomerus

Abstract

Boundary conformal field theory is the suitable framework for a background independent microscopic treatment of D-branes. 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.

Received:
Jan 25, 1999
Published:
Jan 25, 1999

Related publications

inJournal
1999 Repository Open Access
Andreas Recknagel and Volker Schomerus

Boundary deformation theory and moduli spaces of D-branes

In: Nuclear physics / B, 545 (1999) 1-3, pp. 233-282