| Автор | J N Churchill |
| Автор | F E Holmstrom |
| Дата выпуска | 1994-11-01 |
| dc.description | The time-evolution of a wave packet in a perfectly periodic lattice potential is considered for an electron that is in a zero-field Bloch energy eigenstate prior to the adiabatic application of a uniform d.c. electric field. Power series expansions in time are constructed for both the exact wave function and the Houston wave function. A comparison of the coefficients in these two expansions shows that the Houston function diverges instantly and drastically from the exact wave function.A special-case example is presented for which the exact wave function is pure-real for all values of time whereas the corresponding Houston function is not. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Bloch electron in an electric field: a comparison between the exact wave function and the Houston approximation |
| Тип | paper |
| DOI | 10.1088/0031-8949/50/5/021 |
| Electronic ISSN | 1402-4896 |
| Print ISSN | 0031-8949 |
| Журнал | Physica Scripta |
| Том | 50 |
| Первая страница | 576 |
| Последняя страница | 582 |
| Выпуск | 5 |
