Comment on the use of the method of images for calculating electromagnetic responses of interacting spheres.
In this Comment, I argue that the method of images used by Huang, Yu, and Gu [Phys Rev. E 65, 021401 (2002)] and Huang, Karttunen, Yu, Dong, and Gu [Phys Rev. E., 69, 051402 (2004)] to calculate electromagnetic properties of interacting spheres at finite frequencies is inapplicable and does not provide a physically meaningful approximation.
Markel
Vadim A
VA
Department of Radiology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA.