Casimir interactions between two parallel graphene sheets carrying steady-state drift currents
Abstract
We investigate the fluctuation-induced Casimir interactions between two parallel graphene sheets carrying steady-state drift currents. The graphene properties are modeled based on the shifted Fermi disk model to capture the non-equilibrium optical response of the system. We find that the drift current introduces a repulsive correction to the perpendicular to the layers Casimir interaction, thereby reducing the overall attractive force. Although the correction is repulsive, it does not overcome the underlying attraction between the layers. It also generates a lateral force that opposes the carrier flow direction. Both contributions are studied in terms of distance and drift velocity functionalities showing pathways for Casimir force control.
Keywords
Cite
@article{arxiv.2601.00489,
title = {Casimir interactions between two parallel graphene sheets carrying steady-state drift currents},
author = {Modi Ke and Dai-Nam Le and Lilia M. Woods},
journal= {arXiv preprint arXiv:2601.00489},
year = {2026}
}
Comments
10 pages, 5 figures. To be published on Physical Review B