X-ray-edge singularity in nonequilibrium systems.

  • H T Ng
  • Published 1995 in Physical review. B, Condensed matter


We consider how x-ray-edge singularity modification occurs in a class of nonequilibrium systems with more than one Fermi sea at different chemical potentials coupled to one other. The problem is solved by generalizing the Nozieres —De Dorninicis solution for equilibrium systems to the present nonequilibrium situation. We find a much stronger orthogonality… (More)


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