• Corpus ID: 239050051

High-temperature transport and polaron speciation in the anharmonic Holstein model

@inproceedings{Szabo2021HightemperatureTA,
  title={High-temperature transport and polaron speciation in the anharmonic Holstein model},
  author={Attila Szab'o and S. A. Parameswaran and Sarang Gopalakrishnan},
  year={2021}
}
We study the finite-temperature transport of electrons coupled to anharmonic local phonons. Our focus is on the high-temperature incoherent regime, where controlled calculations are possible both for weak and strong electron–phonon coupling. At strong coupling, the dynamics is described in terms of a multiple-species gas of small polarons: this emergent ‘speciation’ is driven by energy conservation. We explicitly compute the dc and ac response in this regime. We discuss the breakdown of the… 

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