Heavy Quark Coupled Channel Dynamics from Thermal Shifts
  QCD at finite temperature below the phase transition should be determined in terms of colour singlet states such as hadrons and strings. We show how quark-hadron duality allows extracting sensible information concerning heavy quark and string breaking coupled channel dynamics from Polyakov loop correlators. 
Enrique Ruiz Arriola, Lorenzo Luis Salcedo, Eugenio Megias
hep-ph hep-lat nucl-th