Resolved-sideband cooling of a single Be + 9 ion in a cryogenic multi-Penning-trap for discrete symmetry tests with (anti-)protons

authored by: Juan M. Cornejo, Johannes Brombacher, Julia A. Coenders, Moritz Von Boehn, Teresa Meiners, Malte Niemann, Stefan Ulmer, Christian Ospelkaus
Abstract: Manipulating the motion of individual trapped ions at the single quantum level has become standard practice in radio-frequency ion traps, enabling sweeping advances in quantum information processing and precision metrology. The key step for motional-state engineering is ground-state cooling. Full motional control also bears great potential to explore another regime of sensitivities for fundamental physics tests in Penning traps. Here we demonstrate the key enabling step by implementing resolved-sideband cooling on the axial mode of a single Be+9 ion in a 5 Tesla cryogenic Penning trap. The system has been developed for the implementation of high-precision antimatter experiments to test the fundamental symmetries of the standard model with the highest accuracy in the baryonic sector. We measure an axial phonon number of n¯z=0.10(4) after cooling and demonstrate that the axial heating rate in our system is compatible with the implementation of quantum logic spectroscopy of (anti-)protons.
Organisation(s): Institute of Quantum Optics
External Organisation(s): Ulmer Fundamental Symmetries Laboratory
University Hospital Düsseldorf
National Metrology Institute of Germany (PTB)
Type: Article
Journal: Physical Review Research
Volume: 6
ISSN: 2643-1564
Publication date: 03.09.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1103/PhysRevResearch.6.033233 (Access: Open)

BibTeX

@article{e71cff79fe5d4108a6cd011f4505d7a9,
title = "Resolved-sideband cooling of a single Be + 9 ion in a cryogenic multi-Penning-trap for discrete symmetry tests with (anti-)protons",
abstract = "Manipulating the motion of individual trapped ions at the single quantum level has become standard practice in radio-frequency ion traps, enabling sweeping advances in quantum information processing and precision metrology. The key step for motional-state engineering is ground-state cooling. Full motional control also bears great potential to explore another regime of sensitivities for fundamental physics tests in Penning traps. Here we demonstrate the key enabling step by implementing resolved-sideband cooling on the axial mode of a single Be+9 ion in a 5 Tesla cryogenic Penning trap. The system has been developed for the implementation of high-precision antimatter experiments to test the fundamental symmetries of the standard model with the highest accuracy in the baryonic sector. We measure an axial phonon number of n¯z=0.10(4) after cooling and demonstrate that the axial heating rate in our system is compatible with the implementation of quantum logic spectroscopy of (anti-)protons.",
keywords = "physics.atom-ph, quant-ph",
author = "Cornejo, {Juan M.} and Johannes Brombacher and Coenders, {Julia A.} and {Von Boehn}, Moritz and Teresa Meiners and Malte Niemann and Stefan Ulmer and Christian Ospelkaus",
note = "Publisher Copyright: {\textcopyright} 2024 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",
year = "2024",
month = sep,
day = "3",
doi = "10.1103/PhysRevResearch.6.033233",
language = "English",
volume = "6",
journal = "Physical Review Research",
issn = "2643-1564",
publisher = "American Physical Society",
number = "3",
}