We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
On AdS/CFT duality in the twisted sector of string theory on AdS<sub>5</sub>× S<sup>5</sup>/ℤ<sub>2</sub> orbifold background.
- Authors
Skrzypek, Torben; Tseytlin, Arkady A.
- Abstract
We consider type IIB string theory on an AdS5 × S5/ℤ2 orbifold background, which should be dual to 4d N = 2 superconformal SU(N) × SU(N) gauge theory with two bi-fundamental hypermultiplets. The correlator of two chiral BPS operators from the twisted sector of this quiver CFT exhibits non-trivial dependence on the 't Hooft coupling λ already in the planar limit. This dependence was recently determined using localisation and the expansion at large λ contains a subleading contribution proportional to ζ(3)λ−3/2. We address the question of how to reproduce this correction on the string theory side by starting with the ζ(3)α′3 term in the type IIB string effective action. We find a regular solution of type IIB supergravity which represents a resolution of the AdS5 × S5/ℤ2 orbifold and demonstrate that the relevant light twisted sector states may be identified as additional supergravity 2-form modes "wrapping" a finite 2-cycle in the resolution space. Reproducing the structure of the gauge theory result becomes more transparent in the large R-charge or BMN-like limit in which the resolved background takes a pp-wave form with the transverse space being a product of ℝ4 and the Eguchi-Hanson space.
- Subjects
STRING theory; SUPERGRAVITY; CRYSTAL field theory; STRUCTURAL analysis (Engineering); CORRELATORS; ADVERTISING
- Publication
Journal of High Energy Physics, 2024, Vol 2024, Issue 3, p1
- ISSN
1126-6708
- Publication type
Article
- DOI
10.1007/JHEP03(2024)045