On the regularization of extremal three-point functions involving giant gravitons
Abstract
In the AdS5 /CFT4 set-up, extremal three-point functions involving two giant 1/2 BPS gravitons and one point-like 1/2 BPS graviton, when calculated using semi-classical string theory methods, match the corresponding three-point functions obtained in the tree-level gauge theory. The string theory computation relies on a certain regularization procedure whose justification is based on the match between gauge and string theory. We revisit the regularization procedure and reformulate it in a way which allows a generalization to the ABJM set-up where three-point functions of 1/2 BPS operators are not protected and where a match between tree-level gauge theory and semi-classical string theory is hence not expected.
- Publication:
-
Physics Letters B
- Pub Date:
- November 2015
- DOI:
- 10.1016/j.physletb.2015.09.056
- arXiv:
- arXiv:1507.03965
- Bibcode:
- 2015PhLB..750..379K
- Keywords:
-
- AdS/CFT correspondence;
- Giant gravitons;
- Three-point functions;
- ABJM theory;
- High Energy Physics - Theory
- E-Print:
- 5 pages, no figures. v2 updated references