41 citations · 214 across the 10 of their papers we have counts for
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Identifying impurities in a silicon substrate by using a superconducting flux qubit
Hiraku Toida, Kosuke Kakuyanagi, Leonid V. Abdurakhimov +3
A bismuth-doped silicon substrate was analyzed by using a magnetometer based on a superconducting flux qubit. The temperature dependence of the magnetization indicates that the sil…
Identification of different types of high-frequency defects in superconducting qubits
Leonid V. Abdurakhimov, Imran Mahboob, Hiraku Toida +3
Parasitic two-level-system (TLS) defects are one of the major factors limiting the coherence times of superconducting qubits. Although there has been significant progress in charac…
Driven-state relaxation of a coupled qubit-defect system in spin-locking measurements
Leonid V. Abdurakhimov, Imran Mahboob, Hiraku Toida +3
It is widely known that spin-locking noise-spectroscopy is a powerful technique for the characterization of low-frequency noise mechanisms in superconducting qubits. Here we show t…
A long-lived capacitively shunted flux qubit embedded in a 3D cavity
Leonid V. Abdurakhimov, Imran Mahboob, Hiraku Toida +2
We report the experimental realization of a 3D capacitively-shunt superconducting flux qubit with long coherence times. At the optimal flux bias point, the qubit demonstrates energ…