Magnetic-Field-Compatible Superconducting Transmon Qubit
A. Kringhøj, T. W. Larsen, O. Erlandsson, W. Uilhoorn, J.G. Kroll, M. Hesselberg, R.P.G. McNeil, P. Krogstrup, L. Casparis, C.M. Marcus, K.D. Petersson
DOI 10.1103/PhysRevApplied.15.054001 · Physical Review Applied
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Abstract
We present a hybrid semiconductor-based superconducting qubit device that remains coherent at magnetic fields up to 1 T. The qubit transition frequency exhibits periodic oscillations with the magnetic field, consistent with interference effects due to the magnetic flux threading the cross section of the proximitized semiconductor nanowire junction. As the induced superconductivity revives, additional coherent modes emerge at high magnetic fields, which we attribute to the interaction of the qubit and low-energy Andreev states.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| NbTiN Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| Al Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
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