Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-09-05
J.Phys.A40:F17,2007
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, 1 figure, minor corrections, references added
Scientific paper
The influence of closed string moduli on the D-brane moduli space is studied from a worldsheet point of view. Whenever a D-brane cannot be adjusted to an infinitesimal change of the closed string background, the corresponding exactly marginal bulk operator ceases to be exactly marginal in the presence of the brane. The bulk perturbation then induces a renormalisation group flow on the boundary whose end-point describes a conformal D-brane of the perturbed theory. We derive the relevant RG equations in general and illustrate the phenomenon with a number of examples, in particular the radius deformation of a free boson on a circle. At the self-dual radius we can give closed formulae for the induced boundary flows which are exact in the boundary coupling constants.
Fredenhagen Stefan
Gaberdiel Matthias R.
Keller Christoph A.
No associations
LandOfFree
Bulk induced boundary perturbations does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Bulk induced boundary perturbations, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bulk induced boundary perturbations will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-554768