Boundary three-point function on AdS2 D-branes

Sylvain Ribault (1)

1 LPTA - Laboratoire de Physique Théorique et Astroparticules

Using the H3+-Liouville relation, I explicitly compute the boundary three-point function on AdS2 D-branes in H3+, and check that it exhibits the expected symmetry properties and has the correct geometrical limit. I then find a simple relation between this boundary three-point function and certain fusing matrix elements, which suggests a formal correspondence between the AdS2 D-branes and discrete representations of the symmetry group. Concluding speculations deal with the fuzzy geometry of AdS2 D-branes, strings in the Minkowskian AdS3, and the hypothetical existence of new D-branes in H3+.

Mots clés: conformal field models in string theory; D-branes

Domaines: Physique des Hautes Energies - Théorie [hep-th]

Sylvain Ribault. Boundary three-point function on AdS2 D-branes. Journal of High Energy Physics, 2008, pp.004. ⟨10.1088/1126-6708/2008/01/004⟩. ⟨hal-00170145⟩