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Beschreibung
We investigate superconducting granular aluminum (grAl) as a promising material for quantum circuits. We show that grAl strips can reach kinetic inductances up to nH/sq, while maintaining small microwave frequency losses. We identify excess quasiparticles as a limiting loss mechanism, and find quasiparticle relaxation times on the order of seconds. By fabricating a fluxonium quantum bit with a grAl superinductor, we demonstrate that grAl is a viable material for superconducting quantum circuits.
Details
| Verlag | KIT Scientific Publishing |
| Ersterscheinung | 24. Oktober 2019 |
| Maße | 24 cm x 17 cm |
| Gewicht | 425 Gramm |
| Format | Softcover |
| ISBN-13 | 9783731509561 |
| Seiten | 170 |
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