Marginally deformed AdS5/CFT4 and spindle-like orbifolds

In this paper we present three new families of smooth Type II string theory backgrounds. These are dual to supersymmetry-preserving deformations of 4d SCFTs. The deformations include a VEV for a global current and a ‘twisted compactification’ on a circle. We study various holographic aspects of the dual QFTs, focusing on Wilson loops and Entanglement Entropy. Additionally, we present a monotonic quantity calculating the density of degrees of freedom in terms of the energy, which interpolates between the IR 3d gapped theory and the 4d SCFT result. Other probes related to global aspects of the QFTs are briefly discussed.

Conformal to confining SQFTs from holography

Chatzis,

Fatemiabhari,

Nunez

et al. 2024

Marginally deformed AdS5/CFT4 backgrounds in Type IIB

Merrikin

2024

Multi-parameter families of $$ \mathcal{N} $$ N = 0 Type IIA and Type IIB AdS5 solutions are presented, promoting to $$ \mathcal{N} $$ N = 1 in some special cases. The G-Structure description of each $$ \mathcal{N} $$ N = 1 solution is given, requiring an Abelian T-Duality of the G-Structure conditions and Pure Spinors. Investigations at the boundaries are performed for a two-parameter family of Type IIA and a three-parameter family of Type IIB solutions, finding the presence of orbifold singularities in some backgrounds. All parameters drop out of the Holographic Central Charge calculation, pointing to marginal deformations in the dual CFT description.

On the class $$ \mathcal{S} $$ origin of spindle solutions

Bomans,

Couzens

2024

We analyse the backreacted geometry corresponding to a stack of M5-branes wrapped on a spindle, with a view towards precision tests of the dual $$ \mathcal{N} $$ N = 1 superconformal field theory. We carefully study the singular loci of the uplifted geometry and show that these correspond to C3/Zn conical singularities. Therefore, these solutions present one of the first explicit realisations of honest locally $$ \mathcal{N} $$ N = 1 preserving punctures in class $$ \mathcal{S} $$ S . Additionally we study the symmetries and anomalies of the dual field theory through anomaly inflow and compute a variety of holographic observables including dimensions of BPS operators. This work paves the way for advancements in the study and identification of the precise dual field theories.