Magnetic-Field-Compatible Superconducting Transmon Qubit
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Magnetic-Field-Compatible Superconducting Transmon Qubit. / Kringhoj, A.; Larsen, T. W.; Erlandsson, O.; Uilhoorn, W.; Kroll, J. G.; Hesselberg, M.; McNeil, R. P. G.; Krogstrup, P.; Casparis, L.; Marcus, C. M.; Petersson, K. D.
In: Physical Review Applied, Vol. 15, No. 5, 054001, 03.05.2021.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Magnetic-Field-Compatible Superconducting Transmon Qubit
AU - Kringhoj, 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 - Petersson, K. D.
PY - 2021/5/3
Y1 - 2021/5/3
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.
KW - SEMICONDUCTOR
KW - STATES
U2 - 10.1103/PhysRevApplied.15.054001
DO - 10.1103/PhysRevApplied.15.054001
M3 - Journal article
VL - 15
JO - Physical Review Applied
JF - Physical Review Applied
SN - 2331-7019
IS - 5
M1 - 054001
ER -
ID: 272239480