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Quantum fluctuations of the Coulomb potential as a source of flicker noise: The influence of external electric fieldстатья
Информация о цитировании статьи получена из
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Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Автор: Kazakov K.A.
- Журнал: Journal of physics A: Mathematical and general
- Том: 39
- Год издания: 2006
- Издательство: IOP Publishing
- Местоположение издательства: [Bristol, UK], England
- Первая страница: 7125
- Последняя страница: 7140
- DOI: 10.1088/0305-4470/39/22/023
- Аннотация: Fluctuations of the electromagnetic field produced by quantized matter in an external electric field are investigated. A general expression for the power spectrum of fluctuations is derived within the long-range expansion. It is found that in the whole measured frequency band, the power spectrum of fluctuations exhibits an inverse frequency dependence. A general argument is given showing that for all practically relevant values of the electric field, the power spectrum of induced fluctuations is proportional to the field strength squared. As an illustration, the power spectrum is calculated explicitly using a kinetic model with a relaxation-type collision term. Finally, it is shown that the magnitude of fluctuations produced by a sample generally has a Gaussian distribution around its mean value, and its dependence on the sample geometry is determined. In particular, it is demonstrated that for geometrically similar samples the power spectrum is inversely proportional to the sample volume. Application of the results obtained to the problem of flicker noise is discussed.
- Добавил в систему: Казаков Кирилл Александрович
Прикрепленные файлы
| № | Имя | Описание | Имя файла | Размер | Добавлен |
|---|---|---|---|---|---|
| 1. | Полный текст | a6_22_023.pdf | 236,7 КБ | 10 ноября 2012 [Kirill_Kazakov] |