Surface States in Holographic Weyl Semimetals.

  title={Surface States in Holographic Weyl Semimetals.},
  author={M. F. Heinrich and Amadeo Jim{\'e}nez-Alba and Sebastian Moeckel and Martin Ammon},
  journal={Physical review letters},
  volume={118 20},
We study the surface states of a strongly coupled Weyl semimetal within holography. By explicit numerical computation of an inhomogeneous holographic Weyl semimetal, we observe the appearance of an electric current restricted to the surface in the presence of an electric chemical potential. The integrated current is universal in the sense that it only depends on the topology of the phases showing that the bulk-boundary correspondence holds even at strong coupling. The implications of this… 

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