Qubit Zoo

Realization of Microwave Quantum Circuits Using Hybrid Superconducting-Semiconducting Nanowire Josephson Elements

1 min read

Independent 2015 demonstration of microwave circuits built from InAs/NbTiN nanowire Josephson elements. Capacitively shunted single elements behaved as voltage-tunable transmon-like qubits; a two-element loop exposed the non-sinusoidal current-phase relation near half flux.

Key Results

  • Electrostatic tuning of a semiconductor weak-link Josephson energy.
  • Transmon-like operation for a single shunted nanowire element.
  • Flux-qubit-like double-well behavior in a two-element loop near half flux; this was not a two-gatemon entangling-gate result.

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