TY  - EJOUR
AU  - Prokhorov, Leonid
AU  - Smith, Aaron A.
AU  - Xu, Mingyao
AU  - Georgiou, Kostas
AU  - Guarrera, Vera
AU  - Kozhiparambil Sajith, Lakshmi P.
AU  - Dijck, Elwin A.
AU  - Warnecke, Christian
AU  - Wehrheim, Malte
AU  - Wilzewski, Alexander
AU  - Blackburn, Laura
AU  - Keller, Matthias
AU  - Boyer, Vincent
AU  - Pfeifer, Thomas
AU  - Schwanke, Ullrich
AU  - Issever, Cigdem
AU  - Worm, Steven
AU  - Schmidt, Piet O.
AU  - Crespo Lopez-Urrutia, José R.
AU  - Barontini, Giovanni
TI  - Coulomb crystallization of xenon highly charged ions in a laser-cooled Ca+ matrix
M1  - PUBDB-2025-05741
PY  - 2025
N1  - submitted to PRL
AB  - We report on the sympathetic cooling and Coulomb crystallization of xenon highly charged ions (HCIs) with laser-cooled Ca+ ions. The HCIs are produced in a compact electron beam ion trap, then charge selected, decelerated, and finally injected into a cryogenic linear Paul trap. There, they are captured into 40Ca+ Coulomb crystals, and co-crystallized within them, causing dark voids in their fluorescence images. Fine control over the number of trapped ions and HCIs allows us to realize mixed-species crystals with arbitrary ordering patterns. By investigating Xeq+-Ca+ strings, we confirm the HCI charge states, measure their lifetime and characterize the mixed-species motional modes. Our system effectively combines the established quantum control toolbox for Ca+ with the rich set of atomic properties of Xe highly charged ions, providing a resourceful platform for optical frequency metrology, searches for signatures of new physics, and quantum information science.
LB  - PUB:(DE-HGF)25
UR  - https://bib-pubdb1.desy.de/record/642951
ER  -