Abstract :
It is shown that the stochastic one-body transport description contains, in addition to incoherent binary collisions, a coherent damping mechanism due to coupling between mean-field fluctuations and single-particle motion. An extended TDHF model is proposed by incorporating the coherent mechanism into the equation of motion. In the limit of small fluctuations around equilibrium, the collective and single-particle self-energies due to the coherent mechanism are deduced.
