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

verfasst von: L. A. Rüffert, E. A. Dijck, L. Timm, J. R.Crespo López-Urrutia, T. E. Mehlstäubler
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.
Organisationseinheit(en): Institut für Theoretische Physik
Institut für Quantenoptik
Laboratorium für Nano- und Quantenengineering
Externe Organisation(en): Physikalisch-Technische Bundesanstalt (PTB)
Max-Planck-Institut für Kernphysik
Typ: Artikel
Journal: Physical Review A
Band: 110
Anzahl der Seiten: 18
ISSN: 2469-9926
Publikationsdatum: 12.12.2024
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Atom- und Molekularphysik sowie Optik
Elektronische Version(en): https://doi.org/10.1103/PhysRevA.110.063110 (Zugang: Geschlossen)

BibTeX

@article{d425780784924ff79e886fd9d52f1b3e,
title = "Domain formation and structural stabilities in mixed-species Coulomb crystals induced by sympathetically cooled highly charged ions",
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.",
author = "R{\"u}ffert, {L. A.} and Dijck, {E. A.} and L. Timm and L{\'o}pez-Urrutia, {J. R.Crespo} and Mehlst{\"a}ubler, {T. E.}",
note = "Publisher Copyright: {\textcopyright} 2024 American Physical Society.",
year = "2024",
month = dec,
day = "12",
doi = "10.1103/PhysRevA.110.063110",
language = "English",
volume = "110",
journal = "Physical Review A",
issn = "2469-9926",
publisher = "American Physical Society",
number = "6",
}