Braiding quantum circuit based on the 4π Josephson effect

  title={Braiding quantum circuit based on the 
 Josephson effect},
  author={John Stenger and Michael J. Hatridge and Sergey M. Frolov and David Pekker},
  journal={Physical Review B},
We propose a topological qubit in which braiding and readout are mediated by the $4\ensuremath{\pi}$ Majorana-Josephson effect. The braidonium device consists of three Majorana nanowires that come together to make a trijunction. In order to control the superconducting phase differences at the trijunction, the nanowires are enclosed in a ring made of a conventional superconductor. In order to perform initialization and readout, one of the nanowires is coupled to a fluxonium qubit through a… 

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