From Marginal Deformations to Confinement

TL;DR

This paper explores how specific marginal deformations of supergravity backgrounds can enhance quark-antiquark attraction and induce confinement in the IR, providing insights into gauge/gravity duality.

Contribution

It demonstrates the impact of marginal deformations on Wilson loops and confinement phenomena in supergravity duals of N=4 super Yang-Mills theory.

Findings

Deformations enhance Coulombic attraction at UV fixed point.

Certain deformations induce a transition to linear confinement in IR.

Wilson loop calculations confirm the confinement behavior.

Abstract

We consider type IIB supergravity backgrounds which describe marginal deformations of the Coulomb branch of N=4 super Yang-Mills theory with SO(4) x SO(2) global symmetry. Wilson loop calculations indicate that certain deformations enhance the Coulombic attraction between quarks and anti-quarks at the UV conformal fixed-point. In the IR region, these deformations can induce a transition to linear confinement.