Photoinduced gap closure in an excitonic insulator

@article{Golevz2016PhotoinducedGC,
  title={Photoinduced gap closure in an excitonic insulator},
  author={D. Golevz and P. Werner and M. Eckstein},
  journal={Physical Review B},
  year={2016},
  volume={94},
  pages={035121}
}
  • D. Golevz, P. Werner, M. Eckstein
  • Published 2016
  • Physics
  • Physical Review B
  • We study the dynamical phase transition out of an excitonic insulator phase after photoexcitation using a time-dependent extension of the self-consistent GW method. We connect the evolution of the photoemission spectra to the dynamics of the excitonic order parameter and identify two dynamical phase transition points marked by a slowdown in the relaxation: one critical point is connected with the trapping in a nonthermal state with reduced exciton density and the second corresponds to the… CONTINUE READING

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