2021
DOI: 10.48550/arxiv.2108.07635
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Quantum nanofriction in trapped ion chains with a topological defect

L. Timm,
L. A. Rüffert,
H. Weimer
et al.

Abstract: Trapped ion systems constitute a well controllable scenario for the study and emulation of nanofriction, and in particular of Frenkel-Kontorova-like models. This is in particular the case when a topological defect is created in a zigzag ion Coulomb crystal, which results in an Aubry transition from free sliding to pinned phase as a function of the trap aspect ratio. We explore the quantum effects of the Aubry transition by means of an effective simplified model, in which the defect is treated like a single qua… Show more

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