Multi-channel Kondo impurity dynamics in a Majorana device
- Resource Type
- Working Paper
- Authors
- Altland, A.; Beri, B.; Egger, R.; Tsvelik, A. M.
- Source
- Phys. Rev. Lett. 113, 076401 (2014)
- Subject
- Condensed Matter - Mesoscale and Nanoscale Physics
- Language
We study the multi-channel Kondo impurity dynamics realized in a mesoscopic superconducting island connected to metallic leads. The effective 'impurity spin' is non-locally 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 multi-channel Kondo impurity dynamics in experimentally realistic environments.
Comment: 4.6 pages; published version