Minimal model of drag in one-dimensional crystals
Autor: | Harshitra Mahalingam, Zhun Wai Yap, B. A. Olsen, A. Rodin |
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Rok vydání: | 2022 |
Předmět: | |
DOI: | 10.48550/arxiv.2209.06065 |
Popis: | Using a non-perturbative classical approach, we study the dynamics of a mobile particle interacting with an infinite one-dimensional (1D) chain of harmonic oscillators. This minimal system is an effective model for many 1D transport phenomena, such as molecular motion in nanotubes and ionic conduction through solid-state materials. As expected, coupling between the mobile particle and the chain induces dissipation of the mobile particle's energy. However, both numerical and analytic results demonstrate an unconventional non-monotonic dependence of the drag on particle speed. In addition, when this system is subjected to a constant bias, it supports multiple steady-state drift velocities. Comment: 7 pages, 4 figures |
Databáze: | OpenAIRE |
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