9 citations · 13 across the 3 of their papers we have counts for
3 papers
physics.atom-ph1998
Finite Mass Effect on Two Photon Processes in Hydrogenic Systems: Effective Scalar Photon Interaction
C. K. Au, C. S. Chu
We consider a hydrogenic system with a nucleus of finite mass. The coupling of the radiation field to the center of mass motion gives rise to an effective scalar type coupling. Thi…
quant-ph1997★ 9 cited
Comment on ``A new efficient method for calculating perturbative energies using functions which are not square integrable'': regularization and justification
C. K. Au, Chi-Keung Chow, Chong-Sun Chu
The method recently proposed by Skala and Cizek for calculating perturbation energies in a strict sense is ambiguous because it is expressed as a ratio of two quantities which are…
quant-ph1996★ 4 cited
Perturbative Scattering Phase Shifts in One-Dimension: Closed-form Results
C. K. Au, Chi-Keung Chow, Chong-Sun Chu
A simple closed form expression is obtained for the scattering phase shift perturbatively to any given order in effective one-dimensional problems. The result is a hierarchical sch…