Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-12-28
Physics
High Energy Physics
High Energy Physics - Theory
18 pages, 5 figures
Scientific paper
Decoupling limits of physical interest occur in regions of space--time where the string coupling diverges. This is illustrated in the celebrated example of five-branes. There are several ways to overcome this strong-coupling problem. We review those which are somehow related to two-dimensional conformal field theories. One method consists of distributing the branes over transverse space, either on a circle or over a sphere. Those distributions are connected to conformal field theories by T-dualities or lead to a new kind of sigma model where the target space is a patchwork of pieces of exact conformal-field-theory target spaces. An alternative method we discuss is the introduction of diluted F-strings, which trigger a marginal deformation of an AdS$_3\times S^3\times T^4$ background with a finite string coupling. Our discussion raises the question of finding brane configurations, their spectrum, their geometry, and their interpretation in terms of two-dimensional conformal models.
Kiritsis Elias
Kounnas Costas
Petropoulos Marios. P.
Rizos I.
No associations
LandOfFree
Five-Brane Configurations, Conformal Field Theories and the Strong-Coupling Problem 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 Five-Brane Configurations, Conformal Field Theories and the Strong-Coupling Problem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Five-Brane Configurations, Conformal Field Theories and the Strong-Coupling Problem will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-717701