PIRSA:16080046 Conference Condensed Matter Quantum Fields and Strings

DOI10.48660/16080046

Conference/School: Low Energy Challenges for High Energy Physicists II

Lucas, A. (2016). Hydrodynamic theory of transport in Dirac and Weyl semimetals. Perimeter Institute. https://pirsa.org/16080046

Lucas, Andrew. Hydrodynamic theory of transport in Dirac and Weyl semimetals. Perimeter Institute, Aug. 24, 2016, https://pirsa.org/16080046 

@misc{ pirsa_PIRSA:16080046,
  doi = {10.48660/16080046},
  url = {https://pirsa.org/16080046},
  author = {Lucas, Andrew},
  keywords = {Condensed Matter, Quantum Fields and Strings},
  language = {en},
  title = {Hydrodynamic theory of transport in Dirac and Weyl semimetals},
  publisher = {Perimeter Institute},
  year = {2016},
  month = {aug},
  note = {PIRSA:16080046 see, \url{https://pirsa.org}}
}

Abstract

I will discuss recent progress in understanding the consequences of hydrodynamic electron flow on measurable transport properties of metals, focusing on metals where the electrons behave as a charge neutral relativistic plasma. In graphene, I will connect our theoretical models with experimental data and show how we can explain features of transport in graphene that are inconsistent with quasiparticle transport. I will then discuss the extension of these results to Weyl semimetals, which are modeled by a system of multiple chiral fluids. Negative magnetoresistance can occur in both electric and thermal transport; the latter is a consequence of a distinct axial-gravitational anomaly. Future transport experiments on Weyl semimetals can discover this exotic type of anomaly in the lab.

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