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; null More Authors

doi:10.1103/PhysRevApplied.15.054001

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, More Authors

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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.

Original language	English
Article number	054001
Journal	Physical Review Applied
Volume	15
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevApplied.15.054001
Publication status	Published - 2021

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PhysRevApplied.15.054001Final published version, 2.55 MB

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title = "Magnetic-field-compatible superconducting transmon qubit",

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.",

author = "A. Kringh{\o}j and Larsen, {T. W.} and O. Erlandsson and W. Uilhoorn and Kroll, {J. G.} and M. Hesselberg and McNeil, {R. P.G.} and P. Krogstrup and L. Casparis and Marcus, {C. M.} and {More Authors}",

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T1 - Magnetic-field-compatible superconducting transmon qubit

AU - Kringhøj, A.

AU - Larsen, T. W.

AU - Erlandsson, O.

AU - Uilhoorn, W.

AU - Kroll, J. G.

AU - Hesselberg, M.

AU - McNeil, R. P.G.

AU - Krogstrup, P.

AU - Casparis, L.

AU - Marcus, C. M.

AU - More Authors, null

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

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U2 - 10.1103/PhysRevApplied.15.054001

DO - 10.1103/PhysRevApplied.15.054001

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SN - 2331-7019

VL - 15

JO - Physical Review Applied

JF - Physical Review Applied

IS - 5

M1 - 054001

ER -

Magnetic-field-compatible superconducting transmon qubit

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