Self-organized topological state with Majorana fermions.

  title={Self-organized topological state with Majorana fermions.},
  author={Mohammad M. Vazifeh and M. W. Franz},
  journal={Physical review letters},
  volume={111 20},
Most physical systems known to date tend to resist entering the topological phase and must be fine-tuned to reach that phase. Here, we introduce a system in which a key dynamical parameter adjusts itself in response to the changing external conditions so that the ground state naturally favors the topological phase. The system consists of a quantum wire formed of individual magnetic atoms placed on the surface of an ordinary s-wave superconductor. It realizes the Kitaev paradigm of topological… CONTINUE READING
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