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Magnetic-Field-Compatible Superconducting Transmon Qubit

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 نشر من قبل Karl Petersson
 تاريخ النشر 2021
  مجال البحث فيزياء
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We present a hybrid semiconductor-based superconducting qubit device which remains coherent at magnetic fields up to 1 T. The qubit transition frequency exhibits periodic oscillations with magnetic field, consistent with interference effects due to the magnetic flux threading the cross section of the proximitized semiconductor nanowire junction. As 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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