Ampere's Law and Energy Loss in AdS/CFT Duality

Abstract

We note that the energy loss in ${\cal N}=4$ SYM measures directly the spatial string tension $σ_S=π\sqrtλT^2/2$ which is at the origin of the area law for large spatial Wilson loops. We show that the latter reflects on the nonperturbative nature of Ampere's law in ${\cal N}=4$ SYM both in vacuum and at finite temperature.

Figures (1)

• Figure 1: The string connecting a receding quark-antiquark with velocity $v$. The dashed lines are the string configuration for the static case $v=0$. They show the screened nature of the color electro-static force.