Differential representation of the delta function in two-dimensional quantum mechanics

Kok An Wong, Su Long Nyeo

研究成果: Article同行評審

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
頁(從 - 到)2547-2552
頁數6
期刊Chinese Journal of Physics
56
發行號5
DOIs
出版狀態Published - 2018 十月

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

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