journal article·2020-03-13Open access

Rabi oscillations in a superconducting nanowire circuit

Yannick Schön, Jan Nicolas Voss, Micha Wildermuth, Andre Schneider, Sebastian T. Skacel, Martin P. Weides, Jared H. Cole, Hannes Rotzinger, Alexey V. Ustinov

npj Quantum Materials· Volume 5· Issue 1

Abstract

Abstract We investigate the circuit quantum electrodynamics of anharmonic superconducting nanowire oscillators. The sample circuit consists of a capacitively shunted nanowire with a width of about 20 nm and a varying length up to 350 nm, capacitively coupled to an on-chip resonator. By applying microwave pulses we observe Rabi oscillations, measure coherence times and the anharmonicity of the circuit. Despite the very compact design, simple top-down fabrication and high degree of disorder in the oxidized (granular) aluminum material used, we observe lifetimes in the microsecond range.
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Research context

OpenAlex topics: Mechanical and Optical Resonators · Topological Materials and Phenomena · Strong Light-Matter Interactions

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