Universal superdiffusive modes in charged two dimensional liquids

Article

关键词: HYDRODYNAMIC ELECTRON FLOW;    ANOMALOUS DIFFUSION;    PLASMA;    RELAXATION;    EXCITATION;    TRANSPORT;    EQUATION;    MEDIA;   

DOI  :  10.1103/PhysRevB.103.235116

来源: SCIE

【 摘 要 】

Using a hydrodynamic approach, we show that charge diffusion in two dimensional Coulomb interacting liquids with broken momentum conservation is intrinsically anomalous. The charge relaxation is governed by an overdamped, superdiffusive plasmon mode. We demonstrate that the diffusing particles follow Levy flight trajectories, and study the hydrodynamic collective modes under the influence of magnetic fields. The latter are shown to slow down the superdiffusive process. The results are argued to be relevant to electron liquids in solids, as well as plasmas.

【 授权许可】

Free