41 citations · 90 across the 4 of their papers we have counts for
6 papers
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…
Control of transition frequency of a superconducting flux qubit by longitudinal coupling to the photon number degree of freedom in a resonator
Hiraku Toida, Takuya Ohrai, Yuichiro Matsuzaki +2
We control transition frequency of a superconducting flux qubit coupled to a frequency-tunable resonator comprising a direct current superconducting quantum interference device (dc…
Electron Spin Resonance with up to 20 Spin Sensitivity Measured using a Superconducting Flux Qubit
Rangga P. Budoyo, Kosuke Kakuyanagi, Hiraku Toida +2
We report on electron spin resonance spectroscopy measurements using a superconducting flux qubit with a sensing volume of 6 fl. The qubit is read out using a frequency-tunable Jos…
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…
Nuclear magnetic resonance spectroscopy with a superconducting flux qubit
Koichiro Miyanishi, Yuichiro Matsuzaki, Hiraku Toida +4
We theoretically analyze the performance of the nuclear magnetic resonance (NMR) spectroscopy with a superconducting flux qubit (FQ). Such NMR with the FQ is attractive because of…
Improving the lifetime of the NV center ensemble coupled with a superconducting flux qubit by applying magnetic fields
Yuichiro Matsuzaki, Xiaobo Zhu, Kosuke Kakuyanagi +8
One of the promising systems to realize quantum computation is a hybrid system where a superconducting flux qubit plays a role of a quantum processor and the NV center ensemble is…