Granular Aluminum Meandered Superinductors for Quantum Circuits

27 Apr 2020  ·  Kamenov Plamen, Lu Wen-Sen, Kalashnikov Konstantin, DiNapoli Thomas, Bell Matthew T., Gershenson Michael E. ·

We have designed superinductors made of strongly disordered superconductors for implementation in "hybrid" superconducting quantum circuits. The superinductors have been fabricated as meandered nanowires made of granular Aluminum films... Optimization of the device geometry enabled realization of superinductors with the inductance $\sim 1 {\mu}H$ and the self-resonance frequency over 3 GHz. These compact superinductors are attractive for a wide range of applications, from superconducting circuits for quantum computing to microwave elements of cryogenic parametric amplifiers and kinetic-inductance photon detectors. read more

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Mesoscale and Nanoscale Physics