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物理学报. 2007, 56(7): 4105-4112.
doi: 10.7498/aps.56.4105.
介观物理系统中的噪声
- 收稿日期: 2006-12-11
- 修回日期: 2006-12-17
- 刊出日期: 2007-07-20
English Abstract
Noise in mesoscopic physics
- Received Date:
11 December 2006
- Accepted Date:
17 December 2006
- Published Online:
20 July 2007
Abstract: We present a review on the noise in mesoscopic physics. The main sources of noise are briefed. The fluctuations in the occupation number give rise to thermal noise, while shot noise is a consequence of the quantization of charge. We introduce the main theory of noise——scattering theory, which has been applied to saddle-shaped semiconductor quantum wires and ferromagnetic/insulator/semiconductor double heterojunctions. The physical significance of the study of noise are pointed out.
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Keywords:
- mesoscopic physics /
- thermal noise /
- shot noise /
- scattering theory
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