Counting statistics of an adiabatic pump

被引：78
|
作者：
Andreev, A
Kamenev, A
机构：
[1] Univ Colorado, Dept Phys, Boulder, CO 80303 USA
[2] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel
来源：
PHYSICAL REVIEW LETTERS | 2000年 / 85卷 / 06期
关键词：
D O I：
10.1103/PhysRevLett.85.1294
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We use the Schwinger-Keldysh formalism to derive the charge counting statistics of an adiabatic pump based on an open quantum dot. The distribution function of the transmitted charge in terms of the time-dependent S matrix is obtained. It is applied to a few simple examples of the pumping cycles. By a chiral gauge transformation the problem is mapped onto a problem of pumping by voltage pulses. The role of the chiral anomaly arising in this mapping is emphasized. Conditions for the ideal noiseless quantized pump are discussed.
引用
收藏
页码：1294 / 1297
页数：4
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