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arXiv 2606.04544cond-mat.mes-hallquant-ph
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利用射频反射法探测PbTe-Pb纳米线器件

Probing PbTe-Pb nanowire devices with radio-frequency reflectometry

Beijing Academy of Quantum Information Sciences(北京量子信息科学研究院);State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University(清华大学物理系低维量子物理国家重点实验室);College of Semiconductors, Southern University of Science and Technology(南方科技大学半导体学院);Hefei National Laboratory(合肥国家实验室)

Xin-Yi Tang, Lin Li, Zezhou Xia, Jierong Huo, Wenyu Song, Lining Yang, Zonglin Li, Jiaye Xu, Peilin Li, Runan Shang, Qi-Kun Xue, Ke He, Hao Zhang

AI总结:

本研究在CdTe衬底上选择性生长的PbTe-Pb纳米线器件中实现了射频反射测量,验证了电阻和电容传感的兼容性,并讨论了介电损耗及有限磁场下的可行性,为拓扑量子计算中的快速控制铺平道路。

摘要:

我们报告了在CdTe衬底上选择性生长的PbTe-Pb纳米线器件中实现射频反射测量的结果。这些纳米线被预测可承载马约拉纳零模。我们证明了射频技术(包括电阻传感和电容传感)与这些纳米线的兼容性。还讨论了CdTe衬底介电损耗的影响。在出现零能模的有限磁场下,射频反射测量的可行性也得到了验证。我们的结果实现了对PbTe量子器件的快速控制,为其在拓扑量子计算中的应用铺平了道路。

英文摘要:

We report the implementation of radio-frequency (rf) reflectometry on selective-area-grown PbTe-Pb nanowire devices on a CdTe substrate. These nanowires are predicted to host Majorana zero modes. We demonstrate the compatibility of the rf technique, including both resistive and capacitive sensing, with these nanowires. The effect of dielectric loss from the CdTe substrate is quantitatively characterized. Furthermore, the feasibility of rf reflectometry is verified under finite magnetic fields where zero-energy modes can emerge. Our results establish the fast control of PbTe quantum devices, paving the way for their applications in topological quantum computation.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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