Casimir interactions and drift currents

• URL: http://arxiv.org/abs/2601.00489v1
• Date: Thu, 01 Jan 2026 21:54:02 GMT
• Title: Casimir interactions and drift currents
• Authors: Modi Ke, Dai-Nam Le, Lilia M. Woods,
• Abstract summary: We find that the drift current introduces a repulsive correction to the perpendicular to the layers Casimir interaction.<n>Although the correction is repulsive, it does not overcome the underlying attraction between the layers.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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