Heavy quarkonia in a medium as a quantum dissipative system: Master-equation approach
arXiv:1109.4271 · doi:10.1140/epjc/s10052-012-2000-7
Abstract
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.
12 pages, 8 figures. Version 2 matches the published version