Superconducting atomic contacts inductively coupled to a microwave resonator
Superconducting atomic contacts inductively coupled to a microwave resonator
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超导原子接触感应耦合到微波谐振器
DOI：
10.1088/0953-8984/26/47/474208
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Instituto Balseiro Cnea Argentina
中科院分区：
文献类型：
--
作者：
C. Janvier;L. Tosi;C. Girit;M. Goffman;H. Pothier;C. U. S. C. France;Instituto Balseiro Cnea Argentina
我们描述和表征的微波装置探测超导原子接触的Andreev水平。接触件是感应耦合到超导共面谐振器的超导回路的一部分。通过监测接近其谐振频率的谐振器反射系数作为通过回路的通量和第二音调的频率的函数，我们执行接触的高透射通道的两个Andreev水平之间的过渡的光谱学。结果表明，如何执行这些状态的相干操纵。
We describe and characterize a microwave setup to probe the Andreev levels of a superconducting atomic contact. The contact is part of a superconducting loop inductively coupled to a superconducting coplanar resonator. By monitoring the resonator reflection coefficient close to its resonance frequency as a function of both flux through the loop and frequency of a second tone we perform spectroscopy of the transition between two Andreev levels of highly transmitting channels of the contact. The results indicate how to perform coherent manipulation of these states.