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Domain formation and structural stabilities in mixed-species Coulomb crystals induced by sympathetically cooled highly charged ions

Autor: Rüffert, L. A., Dijck, E. A., Timm, L., López-Urrutia, J. R. Crespo, Mehlstäubler, T. E.

There is a growing interest in high-precision spectroscopy and frequency metrology for fundamental studies using sympathetically cooled highly charged ions (HCIs) embedded in Coulomb crystals of laser-cooled ions. In order to understand how their str

Externí odkaz: http://arxiv.org/abs/2408.05049

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Non-Abelian vibron dynamics in trapped-ion arrays

Autor: Timm, L., Weimer, H., Santos, L.

Trapped-ion arrays offer interesting possibilities for quantum simulation. We show that a proper arrangement of elliptical micro-traps combined with the external driving of the micro-trap frequencies allows, without the need of any precise fine-tunin

Externí odkaz: http://arxiv.org/abs/2401.16022

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Heat transport in a Coulomb ion crystal with a topological defect

Autor: Timm, L., Weimer, H., Santos, L., Mehlstäubler, T. E.

Publikováno v: Phys. Rev. B 108, 134302 (2023)

The thermodynamics of low-dimensional systems departs significantly from phenomenologically deducted macroscopic laws. Particular examples, not yet fully understood, are provided by the breakdown of Fourier's law and the ballistic transport of heat.

Externí odkaz: http://arxiv.org/abs/2306.05845

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Quantum nanofriction in trapped ion chains with a topological defect

Autor: Timm, L., Rüffert, L. A., Weimer, H., Santos, L., Mehlstäubler, T. E.

Publikováno v: Phys. Rev. Research 3, 043141, 2021

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 c

Externí odkaz: http://arxiv.org/abs/2108.07635

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Energy localization in interacting atomic chains with topological solitons

Autor: Timm, L., Weimer, H., Santos, L., Mehlstäubler, T. E.

Publikováno v: Phys. Rev. Research 2, 033198 (2020)

Topological defects in low-dimensional non-linear systems feature a sliding-to-pinning transition of relevance for a variety of research fields, ranging from biophysics to nano- and solid-state physics. We find that the dynamics after a local excitat

Externí odkaz: http://arxiv.org/abs/1910.02135

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