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.

中文翻译：

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磁场兼容的超导跨极量子比特

我们提出了一种基于半导体的混合型超导量子位器件，该器件在高达1 T的磁场下仍保持相干。量子位跃迁频率随磁场表现出周期性振荡，与磁通量贯穿受阻半导体横截面的干扰效应相一致纳米线结。随着感应超导的恢复，在高磁场下会出现其他相干模式，这归因于量子位和低能安德列夫状态的相互作用。