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arXiv · 2307.11361

Photon mediated energy, linear and angular momentum transport in fullerene and graphene systems beyond local equilibrium

Jian-Sheng Wang·Mauro Antezza
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Abstract

Based on a tight-binding model for the electron system, we investigate the transfer of energy, momentum, and angular momentum mediated by electromagnetic fields among buckminsterfullerene (C$_{60}$) and graphene nano-strips. Our nonequilibrium Green's function approach enables calculations away from local thermal equilibrium where the fluctuation-dissipation theorem breaks down. For example, the forces between C$_{60}$ and current-carrying nano-strips are predicted. It is found that the presence of current usually enhances the van der Waals attractive forces. For two current-carrying graphene strips rotated at some angle, the fluctuational force and torque are much stronger at the nanoscale compared to that of the static Biot-Savart law.

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Jian-Sheng Wang, Mauro Antezza. 2023-07-21. Photon mediated energy, linear and angular momentum transport in fullerene and graphene systems beyond local equilibrium. https://doi.org/10.1103/physrevb.109.125105

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