Автор |
Y Z Huang |
Автор |
C M Wang |
Дата выпуска |
1991-08-05 |
dc.description |
The times spent by an electron in a scattering event or tunnelling through a potential barrier are investigated using a method based on the absorption probabilities. The reflection and transmission times derived from this method are equal to the local Larmor times if the transmission and reflection probability amplitudes are complex analytic functions of the complex potential. The numerical results show that they coincide with the phase times except as the incident electron energy approaches zero or when the transmission probability is too small. If the imaginary potential covers the whole space the tunnelling times are again equal to the phase times. The results show that the tunnelling times based on absorption probabilities are the best of the various candidates. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Comparisons of phase times with tunnelling times based on absorption probabilities |
Тип |
paper |
DOI |
10.1088/0953-8984/3/31/014 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
3 |
Первая страница |
5915 |
Последняя страница |
5919 |
Аффилиация |
Y Z Huang; Inst. of Semicond., Chinese Acad. of Sci., Beijing, China |
Аффилиация |
C M Wang; Inst. of Semicond., Chinese Acad. of Sci., Beijing, China |
Выпуск |
31 |