摘要
The exactly solvable model of a two-dimensional system consisting of a particle in a Dirac delta function potential is studied in position space in lieu of momentum space. This study is facilitated by representing the delta function as the second derivative of a radial function, which depends on a length scale. Such a representation of the delta function provides an instructive approach to understanding the role of an arbitrary length scale in the concepts of regularization and renormalization.
原文 | English |
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頁(從 - 到) | 2547-2552 |
頁數 | 6 |
期刊 | Chinese Journal of Physics |
卷 | 56 |
發行號 | 5 |
DOIs | |
出版狀態 | Published - 2018 10月 |
All Science Journal Classification (ASJC) codes
- 一般物理與天文學