| Budget Amount *help |
¥18,070,000 (Direct Cost: ¥13,900,000、Indirect Cost: ¥4,170,000)
Fiscal Year 2023: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥13,390,000 (Direct Cost: ¥10,300,000、Indirect Cost: ¥3,090,000)
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| Outline of Final Research Achievements |
For capacitively-shunted flux qubits, which have good coherence property and large anharmonicity, we have studied the cross-resonance readout scheme. The cross-resonance readout scheme is expected to be faster and to have higher fidelity than the conventional dispersive readout scheme. A fabricated sample is cooled at a few tens of mK, and we evaluated the two readout schemes. At a fixed measurement time, the cross-resonance readout scheme shows larger complex amplitude difference than the dispersive readout scheme. This result indicates that the cross-resonance readout scheme has a potential to measure qubit state faster and with high fidelity.
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