Harmonic analysis and graviton spectrum in 11d supergravity
Implementing Organization
Indian Institute of Technology (IIT)
Principal Investigator
Dr. Moumita Patra
Dr. Arkajyoti Mukherjee, Indian Institute Of Technology (IIT) Kharagpur, West Bengal
Project Overview
11d supergravity admits classical solutions of the form M_4 X M_7, where M_4 is an AdS_4 and M_7 is a compact 7d Einstein manifold with positive curvature. The compactification of 11d supergravity was of great interest in the 80s due to the emergence of the group SU(3) X SU(2) X U(1) as the symmetry group of the internal manifold M_7. Later, some of these internal manifolds were classified and found to be tri-Sasaki-Einstein (SE) manifolds, which play an important role in the context of AdS/CFT correspondence. Checks of AdS/CFT duality mostly rely on methods such as matching superconformal indices (SCI), matching moduli spaces, and comparing partition functions. The first example of a AdS_4 /CFT_3 is the ABJM theory, which admits M-theory vacua S_7 /Z_k. Many superconformal Chen-Simons (CS) theories in 3d have been constructed with N = 2,3,4 supersymmetries, having AdS_4 X M_7 vacua in M-theory. The main focus of this project is to explore non-homogeneous SE manifolds, which correspond to a class of N = 3 SCF quiver CS matter theories falling under the ADE classification. The project aims to compute the multiparticle graviton index of the conjectured gravity dual of N = 3 CS matter theories with ADE classification of the form AdS_4 X M_7.