Sympathetic cooling schemes for separately trapped ions coupled via image currents

authored by: C. Will, M. Bohman, T. Driscoll, M. Wiesinger, F. Abbass, M. J. Borchert, J. A. Devlin, S. Erlewein, M. Fleck, B. Latacz, R. Moller, A. Mooser, D. Popper, E. Wursten, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, C. Smorra, S. Ulmer
Abstract: Cooling of particles to mK-temperatures is essential for a variety of experiments with trapped charged particles. However, many species of interest lack suitable electronic transitions for direct laser cooling. We study theoretically the remote sympathetic cooling of a single proton with laser-cooled 9Be+ in a double-Penning-trap system. We investigate three different cooling schemes and find, based on analytical calculations and numerical simulations, that two of them are capable of achieving proton temperatures of about 10 mK with cooling times on the order of 10 s. In contrast, established methods such as feedback-enhanced resistive cooling with image-current detectors are limited to about 1 K in 100 s. Since the studied techniques are applicable to any trapped charged particle and allow spatial separation between the target ion and the cooling species, they enable a variety of precision measurements based on trapped charged particles to be performed at improved sampling rates and with reduced systematic uncertainties.
Organisation(s): Institute of Quantum Optics
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): Max Planck Institute for Nuclear Physics
Ulmer Fundamental Symmetries Laboratory
University of Texas at Austin
Johannes Gutenberg University Mainz
National Metrology Institute of Germany (PTB)
CERN
University of Tokyo
GSI Helmholtz Centre for Heavy Ion Research
Helmholtz-Institut Mainz
Type: Article
Journal: New journal of physics
Volume: 24
No. of pages: 19
ISSN: 1367-2630
Publication date: 03.2022
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.48550/arXiv.2112.04818 (Access: Open)
https://doi.org/10.1088/1367-2630/ac55b3 (Access: Open)

BibTeX

@article{be9cc5322dbd4a009439bedb045c5cde,
title = "Sympathetic cooling schemes for separately trapped ions coupled via image currents",
abstract = "Cooling of particles to mK-temperatures is essential for a variety of experiments with trapped charged particles. However, many species of interest lack suitable electronic transitions for direct laser cooling. We study theoretically the remote sympathetic cooling of a single proton with laser-cooled 9Be+ in a double-Penning-trap system. We investigate three different cooling schemes and find, based on analytical calculations and numerical simulations, that two of them are capable of achieving proton temperatures of about 10 mK with cooling times on the order of 10 s. In contrast, established methods such as feedback-enhanced resistive cooling with image-current detectors are limited to about 1 K in 100 s. Since the studied techniques are applicable to any trapped charged particle and allow spatial separation between the target ion and the cooling species, they enable a variety of precision measurements based on trapped charged particles to be performed at improved sampling rates and with reduced systematic uncertainties.",
keywords = "atomic physics, laser cooling, Penning trap, precision measurements, sympathetic cooling, trapped ions",
author = "C. Will and M. Bohman and T. Driscoll and M. Wiesinger and F. Abbass and Borchert, {M. J.} and Devlin, {J. A.} and S. Erlewein and M. Fleck and B. Latacz and R. Moller and A. Mooser and D. Popper and E. Wursten and K. Blaum and Y. Matsuda and C. Ospelkaus and W. Quint and J. Walz and C. Smorra and S. Ulmer",
note = "Funding Information: We acknowledge financial support from the Max-Planck-Society, RIKEN Chief Scientist Program, RIKEN Pioneering Project Funding, the RIKEN JRA Program, the Helmholtz-Gemeinschaft, the DFG through SFB 1227 {\textquoteleft}DQ-mat{\textquoteright}, the European Union (Marie Sklodowska-Curie Grant Agreement Number 721559), the European Research Council (ERC) under the European Union{\textquoteright}s Horizon 2020 research and innovation programme (Grant Agreement Nos. 832848-FunI and 852818-STEP), the DAAD RISE program and the Max-Planck-RIKEN-PTB Center for Time, Constants and Fundamental Symmetries.",
year = "2022",
month = mar,
doi = "10.48550/arXiv.2112.04818",
language = "English",
volume = "24",
journal = "New journal of physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",
number = "3",
}