Our paper titled "Lorenz gauge potential-based time domain integral equations for analyzing subwavelength penetrable regions" was accepted for publication in the IEEE Journal on Multiscale and Multiphysics Computational Techniques.

This paper presents a new time domain integral equation technique that can stably analyze subwavelength penetrable geometries (these occur frequently in areas such as quantum optics). The paper discusses the Sobolev space properties of the different time domain integral operators and gives guidelines on how these properties can be used to develop stable marching-on-in-time discretization schemes. We also present for the first time a method-of-moments discretization of a potential-based integral equation (in frequency or time domains) for penetrable regions.