arXiv subjects

Benjamin M. Ross

Publications and source records attributed to Benjamin M. Ross.

2 recordsLinked to original sources

arXiv2019

Bruggeman Approach for Isotropic Chiral Mixtures Revisited

Two interpretations of the Bruggeman approach for the homogenization of isotropic chiral mixtures are shown to lead to different results. Whereas the standard interpretation is shown to yield the average-polarizability-density approach, a recent interpretation turns out to deliver a null-excess-polarization approach. The difference between the two interpretations arises from differing treatments of the local field

physics.optics↗

arXiv2006

Effect of charge on negative-phase-velocity propagation of electromagnetic waves in the ergosphere of a rotating black hole

The presence of charge promotes the propensity of a rotating black hole to support the propagation of electromagnetic plane waves with negative phase velocity (NPV) in its ergosphere, whether the Kerr-Newman or the Kerr-Sen metric descriptions of spacetime are considered. Striking differences in the NPV characteristics for the Kerr-Newman and Kerr-Sen metrics emerge from numerical studies, particularly close to the outer event horizon when the magnitude of the charge is large.

astro-ph↗