Work

Casimir interactions between two parallel graphene sheets carrying steady-state drift currents

Year: 2026

Type: article

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.

Source: Physical review. B./Physical review. B

DOI: 10.1103/84n7-1r3b

Authors: Modi Ke, Dai-Nam Le, Lilia M. Woods

Institution: University of South Florida

Language: English

Topic: Quantum Electrodynamics and Casimir Effect

Subfield: Atomic and Molecular Physics, and Optics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funder: U.S. Department of Energy

Award: THEORETICAL STUDIES OF GRAPHITIC NANOSTRUCTURED MATERIALS INTERACTIONS