Superconducting tetrahedral quantum bits.

  title={Superconducting tetrahedral quantum bits.},
  author={Mikhail V. Feigel’man and Lev B. Ioffe and Vadim B. Geshkenbein and Pratika Dayal and Gianni Blatter},
  journal={Physical review letters},
  volume={92 9},
  • Mikhail V. Feigel’man, Lev B. Ioffe, +2 authors Gianni Blatter
  • Published 2004
  • Physics, Medicine
  • Physical review letters
  • We propose a design for a qubit with four superconducting islands in the topology of a symmetric tetrahedron, uniformly frustrated with one-half flux quantum per loop and one-half Cooper pair per island. This structure emulates a noise-resistant spin-1/2 system in a vanishing magnetic field. The flux frustration boosts quantum fluctuations and relieves the constraints on junction fabrication. Variability of manipulation and optimized readout are additional benefits of this design. 

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