Low Temperature Laboratory (OVLL), Aalto University School of Science, P.O. Box 13500, 00076 Aalto, Finland and Centre for Metrology and Accreditation (MIKES), P.O. Box 9, 02151 Espoo, Finland.
Département de Physique Théorique, Université de Genève, 1211 Genève, Switzerland.
Phys Rev Lett. 2014 Jan 24;112(3):036801. doi: 10.1103/PhysRevLett.112.036801. Epub 2014 Jan 23.
We employ a single-charge counting technique to measure the full counting statistics of Andreev events in which Cooper pairs are either produced from electrons that are reflected as holes at a superconductor-normal-metal interface or annihilated in the reverse process. The full counting statistics consists of quiet periods with no Andreev processes, interrupted by the tunneling of a single electron that triggers an avalanche of Andreev events giving rise to strongly super-Poissonian distributions.
我们采用单电荷计数技术来测量超导-正常金属界面处电子反射为空穴或在逆过程中湮灭时产生的库珀对的全计数统计。全计数统计包括没有安德烈夫过程的安静期，其间会有单个电子隧穿，引发安德烈夫事件的雪崩，从而产生强超泊松分布。
