Multichannel Kondo impurity dynamics in a Majorana device.

  title={Multichannel Kondo impurity dynamics in a Majorana device.},
  author={Alexander Altland and Benjamin B{\'e}ri and Reinhold Egger and Alexei M. Tsvelik},
  journal={Physical review letters},
  volume={113 7},
We study the multichannel Kondo impurity dynamics realized in a mesoscopic superconducting island connected to metallic leads. The effective "impurity spin" is nonlocally realized by Majorana bound states and strongly coupled to lead electrons by non-Fermi liquid correlations. We explore the spin dynamics and its observable ramifications near the low-temperature fixed point. The topological protection of the system raises the perspective to observe multichannel Kondo impurity dynamics in… CONTINUE READING