Full counting statistics of incoherent Andreev transport

被引：24

作者：

Belzig, W

Samuelsson, P

机构：

[1] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland

[2] Univ Geneva, Dept Phys Theor, CH-1211 Geneva 4, Switzerland

来源：

EUROPHYSICS LETTERS | 2003年 / 64卷 / 02期

关键词：

D O I：

10.1209/epl/i2003-00314-9

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the full counting statistics of heterostructures consisting of normal-metal parts connected to a superconducting terminal. Assuming that coherent superconducting correlations are suppressed in the normal metals, we show, using the Keldysh-Nambu Green's function approach, that the system can be mapped onto a purely normal system with twice the number of elements. For a superconducting beamsplitter with several normal terminals we obtain general results for the counting statistics.

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页码：253 / 259

页数：7

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