Photoemission spectra of many-polaron systems

@article{Hohenadler2005PhotoemissionSO,
  title={Photoemission spectra of many-polaron systems},
  author={Martin Hohenadler and Danilo Rene Neuber and Wolfgang von der Linden and Gerhard Wellein and Jan Loos and Holger Fehske},
  journal={Physical Review B},
  year={2005},
  volume={71}
}
The cross over from low to high carrier densities in a many-polaron system is studied in the framework of the one-dimensional spinless Holstein model, using unbiased numerical methods. Combining a novel quantum Monte Carlo approach and exact diagonalization, accurate results for the single-particle spectrum and the electronic kinetic energy on fairly large systems are obtained. A detailed investigation of the quality of the Monte Carlo data is presented. In the physically most important… 
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