Generalized gradient expansions in quantum transport equations

@article{Krl1997GeneralizedGE,
  title={Generalized gradient expansions in quantum transport equations},
  author={P. Kr{\'a}l},
  journal={Journal of Statistical Physics},
  year={1997},
  volume={86},
  pages={1337-1358}
}
  • P. Král
  • Published 1997
  • Mathematics, Physics
  • Journal of Statistical Physics
Gradient expansions in quantum transport equations of a Kadanoff-Baym form have been reexamined. In a consistent approach the expansion should be performed also inside the self-energy in the scattering integrals of these equations. In the first perturbation order this internal expansion gives new correction terms to the generalized Boltzmann equation. These correction terms are found here for several typical systems. Possible corrections to the theory of a linear response to weak electric… Expand
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