Journal article

Entropy-cooled nonequilibrium states of the Hubbard model

  • Werner, Philipp Department of Physics, University of Fribourg, Switzerland
  • Li, Jianju Department of Physics, University of Erlangen-Nürnberg, Erlangen, Germany
  • Golež, Denis Center for Computational Quantum Physics, Flatiron Institute, New York, USA
  • Eckstein, Martin Department of Physics, University of Erlangen-Nürnberg, Erlangen, Germany
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    16.10.2019
Published in:
  • Physical Review B. - 2019, vol. 100, no. 15, p. 155130
English We show that the recently proposed cooling-by-doping mechanism allows one to efficiently prepare interesting nonequilibrium states of the Hubbard model. Using nonequilibrium dynamical mean field theory and a particle-hole symmetric setup with dipolar excitations to full and empty bands we produce cold photodoped Mott insulating states with a sharp Drude peak in the optical conductivity, a superconducting state in the repulsive Hubbard model with an inverted population, and η -paired states in systems with a large density of doublons and holons. The reshuffling of entropy into full and empty bands not only provides an efficient cooling mechanism, it also allows one to overcome thermalization bottlenecks and slow dynamics that have been observed in systems cooled by the coupling to boson baths.
Faculty
Faculté des sciences et de médecine
Department
Département de Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/308203
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