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

Research output: Contribution to journalArticleResearchpeer review

Authors

  • L. A. Rüffert
  • E. A. Dijck
  • L. Timm
  • J. R.Crespo López-Urrutia
  • T. E. Mehlstäubler

External Research Organisations

  • Physikalisch-Technische Bundesanstalt PTB
  • Max Planck Institute for Nuclear Physics
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Details

Original languageEnglish
Article number063110
Number of pages18
JournalPhysical Review A
Volume110
Issue number6
Publication statusPublished - 12 Dec 2024

Abstract

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 strong repulsion affects the crystal structure and dynamics, we study the thermal motion and rearrangement of small mixed linear and homogeneous crystals by both measurements and simulations. Cocrystallized HCIs form superlattices and divide the crystal into domains, where different reordering rates, melting points, and localized phase transitions are observed due to decoupling of motional modes across boundaries. These results improve our understanding of homogeneous and inhomogeneous ion strings over a wide range of charge-to-mass ratios. This allows us to test our own simulations of the dynamic behavior of ion strings and gives us confidence in their suitability for applications related to quantum simulation as well as computing and the search for new physics.

ASJC Scopus subject areas

Cite this

Domain formation and structural stabilities in mixed-species Coulomb crystals induced by sympathetically cooled highly charged ions. / Rüffert, L. A.; Dijck, E. A.; Timm, L. et al.
In: Physical Review A, Vol. 110, No. 6, 063110, 12.12.2024.

Research output: Contribution to journalArticleResearchpeer review

Rüffert LA, Dijck EA, Timm L, López-Urrutia JRC, Mehlstäubler TE. Domain formation and structural stabilities in mixed-species Coulomb crystals induced by sympathetically cooled highly charged ions. Physical Review A. 2024 Dec 12;110(6):063110. doi: 10.1103/PhysRevA.110.063110
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