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Andreev, Oleg (2018): Drag force on heavy quarks and spatial string tension. In: Modern Physics Letters A, Vol. 33, No. 6, 1850041
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Heavy quark transport coefficients in a strongly coupled Quark Gluon Plasma can be evaluated using a gauge/string duality and lattice QCD. Via this duality, one can argue that for low momenta the drag coefficient for heavy quarks is proportional to the spatial string tension. Such a tension is well-studied on the lattice that allows one to straightforwardly make non-perturbative estimates of the heavy quark diffusion coefficients near the critical point. The obtained results are consistent with those in the literature.