Affiliation:
1. Physics Department, Kobe University, Kobe 657-8501, Japan
Abstract
In the electric dipole approximation, the model of a charged harmonic oscillator interacting with the radiation field becomes quadratic and soluble, but it needs a UV cutoff for the photon frequency. The model’s renormalizability is only apparent; physics requires that the cutoff be kept finite. The cutoff plays the role of a parameter that characterizes the high frequency behavior of the photon cross-section.
Publisher
World Scientific Pub Co Pte Ltd
Subject
Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics