2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/194876Using the gauge-string duality, I compute two-point functions of the force acting on an external quark moving through a finite temperature bath of N=4 super-Yang-Mills theory. I comment on the possible relevance of the string theory calculations to heavy quarks propagating through a quark-gluon plasma.37 pages, 2 figures. v2: small improvements, ref added. v3: substantial revisions. v4: fixed a few typosHigh Energy Physics - Theorytext