Gravitational Effects on Light Propagation in Linear Magnetoelectrics and Plasmas

A covariant formalism for electromagnetism is used to investigate the effects of light propagation within certain material systems under the influence of a background gravitational field. Specifically, dielectric media described by linear constitutive relations, as well as magnetized plasma media, such as the magnetosphere of neutron stars, are examined. Estimates for detecting gravitational effects through precise refractive index measurements within these scenarios are provided.

Source: arXiv:2607.20568v1 - http://arxiv.org/abs/2607.20568v1 PDF: https://arxiv.org/pdf/2607.20568v1 Original Link: http://arxiv.org/abs/2607.20568v1