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Kinetic theory of tilted dirac cone materials

Moradpouri, A ; Sharif University of Technology | 2024

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  1. Type of Document: Article
  2. DOI: 10.1016/j.aop.2024.169817
  3. Publisher: 2024
  4. Abstract:
  5. We formulate the Boltzmann kinetic equations for interacting electrons with tilted Dirac cones in two space dimensions characterized by a tilt parameter 0≤ζ<1. By solving the linearized Boltzmann equation, we find that the broadening of the Drude pole is enhanced by κ(ζ)×(1−ζ2)−1/2, where the κ is interaction-induced enhancement factor. The intensity of the Drude pole is also anisotropically enhanced by (1−ζ2)−1. The ubiquitous “redshift” factors (1−ζ2)1/2 can be regarded as a manifestation of an underlying spacetime structure in such solids. The additional broadening κ that arises from the interactions cannot be obtained from a simple coordinate change and are more pronounced for electrons in a ζ-deformed Minkowski spacetime of tilted Dirac fermions. © 2024 Elsevier Inc
  6. Keywords:
  7. Condensed matter ; Strongly correlated electrons ; General relativity and quantum cosmology
  8. Source: Annals of Physics ; Volume 470 , 2024 ; 00034916 (ISSN)
  9. URL: https://www.sciencedirect.com/science/article/abs/pii/S0003491624002240