Heavy quarkonia in a medium as a quantum dissipative system: master-equation approach

@article{Borghini2012HeavyQI,
  title={Heavy quarkonia in a medium as a quantum dissipative system: master-equation approach},
  author={N. Borghini and Cl'ement Gombeaud},
  journal={The European Physical Journal C},
  year={2012},
  volume={72},
  pages={1-12}
}
The problem of the evolution of a heavy quarkonium in a medium can be recast as that of a quantum dissipative system. Within the framework of the master-equation approach to open quantum systems, we consider the real-time dynamics of quarkonia. We find that in a plasma at fixed temperature, the populations of the various quarkonium states evolve together, while their momentum distribution satisfies a Fokker–Planck equation. 
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