Probing Majorana edge states with a flux qubit

  title={Probing Majorana edge states with a flux qubit},
  author={Chang-Yu Hou and Fabian Hassler and A. Akhmerov and Johan Nilsson},
  journal={Physical Review B},
A pair of counter-propagating Majorana edge modes appears in chiral p-wave superconductors and in other superconducting systems belonging to the same universality class. These modes can be described by an Ising conformal field theory. We show how a superconducting flux qubit attached to such a system couples to the two chiral edge modes via the disorder field of the Ising model. Due to this coupling, measuring the back-action of the edge states on the qubit allows to probe the properties of… 

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