Nanoampere pumping of Cooper pairs
Nanoampere pumping of Cooper pairs
复制标题
库珀对的纳安泵浦
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
A. Kemppinen
中科院分区：
文献类型：
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作者：
J. Vartiainen;M. Mottonen;J. Pekola;A. Kemppinen
作者采用了一种可调谐的库珀对晶体管，闸，与射频控制泵电流通过电阻电路。他们发现，每个泵浦周期转移的电荷可以用单个库珀对到数百对的分辨率来控制。所获得的纳安电流特征比先前报道的结果提高了一个数量级以上，并且接近于所测量样品的理论最大值。
The authors have employed a tunable Cooper-pair transistor, the sluice, with radio frequency control to pump current over a resistive circuit. They find that the charge transferred per pumping cycle can be controlled with the resolution of a single Cooper pair up to hundreds of pairs. The achieved nanoampere current features more than an order of magnitude improvement over the previously reported results and it is close to the theoretical maximum value for the measured sample.