[en] In high-energy collisions, massive heavy quarks are produced back to back initially and they are sensitive to early dynamical conditions. The strong collective partonic wind from the fast expanding quark-gluon plasma created in high-energy nuclear collisions modifies the correlation pattern significantly. While the hot and dense medium in collisions at the BNL Relativistic Heavy Ion Collider (√(s_NN)=200 GeV) can only smear the initial back-to-back DD correlation, a clear and strong near side DD correlation is expected at the CERN Large Hadron Collider (√(s_NN)=5500 GeV). This is considered as a signature for the strongly coupled quark-gluon plasma