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arXiv · 2501.08239

Phononic frictional losses of a particle crossing a crystal: linear-response theory

Gabriele Riva·Giacomo Piscia·Nicolas Trojani·Giuseppe E. Santoro·Erio Tosatti·Nicola Manini
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Abstract

We address weak-coupling frictional sliding with phononic dissipation by means of analytic many-body techniques. Our model consists of a particle (the "slider") moving through a two- or three-dimensional crystal and interacting weakly with its atoms, and therefore exciting phonons. By means of linear-response theory we obtain explicit expressions for the friction force slowing down the slider as a function of its speed, and compare them to the friction obtained by simulations, demonstrating a remarkable accord.

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Gabriele Riva, Giacomo Piscia, Nicolas Trojani, Giuseppe E. Santoro, Erio Tosatti, Nicola Manini. 2025-01-14. Phononic frictional losses of a particle crossing a crystal: linear-response theory. https://doi.org/10.1103/9gyv-lr89

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