单库珀对晶体管中准粒子隧穿的微秒级分辨率
Microsecond resolution of quasiparticle tunneling in the single-Cooper-pair transistor.
作者信息
Ferguson A J, Court N A, Hudson F E, Clark R G
机构信息
Australian Research Centre of Excellence for Quantum Computer Technology, University of New South Wales, Sydney NSW 2052, Australia.
出版信息
Phys Rev Lett. 2006 Sep 8;97(10):106603. doi: 10.1103/PhysRevLett.97.106603. Epub 2006 Sep 7.
We present radio-frequency measurements on a single-Cooper-pair-transistor in which individual quasiparticle poisoning events were observed with microsecond temporal resolution. Thermal activation of the quasiparticle dynamics is investigated, and consequently, we are able to determine energetics of the poisoning and unpoisoning processes. In particular, we are able to assign an effective quasiparticle temperature to parametrize the poisoning rate.
我们展示了对单个库珀对晶体管的射频测量，其中以微秒时间分辨率观察到了单个准粒子中毒事件。研究了准粒子动力学的热激活，因此，我们能够确定中毒和解毒过程的能量学。特别是，我们能够指定一个有效的准粒子温度来参数化中毒率。
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