Abstract
We present methods to manipulate and detect the motional state and the spin state of a single antiproton or proton which are currently under development within the BASE (Baryon Antibaryon Symmetry Experiment) collaboration. These methods include sympathetic laser cooling of a single (anti-)proton using a co-trapped atomic ion as well as quantum logic spectroscopy with the two particles and could be implemented within the collaboration for state preparation and state readout in the antiproton g-factor measurement experiment at CERN. In our project, these techniques shall be applied using a single 9Be+ ion as the atomic ion in a Penning trap system at a magnetic field of 5 T. As an intermediate step, a controlled interaction of two beryllium ions in a double-well potential as well as sympathetic cooling of one ion by the other shall be demonstrated.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Ding, Y., Kostelecký, V.A.: Lorentz-violating spinor electrodynamics and Penning traps. Phys. Rev. D 94, 056008 (2016)
Schneider, G., et al.: Double-trap measurement of the proton magnetic moment at 0.3 parts per billion precision. Science 358, 1081–1084 (2017)
Smorra, C., et al.: A parts-per-billion measurement of the antiproton magnetic moment. Nature 550, 371–374 (2017)
Dehmelt, H., Ekström, P.: Proposed g-2/ω z experiment on single stored electron or positron. Bull. Am. Phys. Soc. 18, 727 (1973)
Heinzen, D.J., Wineland, D.J.: Quantum-limited cooling and detection of radio-frequency oscillations by laser-cooled ions. Phys. Rev. A 42, 2977–2994 (1990)
Hilico, L., et al.: Preparing single ultra-cold antihydrogen atoms for free-fall in GBAR. International Journal of Modern Physics: Conference Series 30, 1460269 (2014)
Niemann, M., et al.: Proceedings of the Sixth meeting on CPT and lorentz symmetry, pp 41–44. World Scientific, Singapore (2014)
Meiners, T., et al.: Towards quantum logic inspired cooling and detection for single (anti-)protons. JPS Conf. Proc. 18, 011006 (2017)
Segal, D.M., Wunderlich, C.: Physics with trapped charged particles, pp 48–69. Imperial College Press, London (2014)
Smorra, et al.: BASE – The baryon antibaryon symmetry experiment. Eur. Phys. J. Special Topics 224, 3055–3108 (2015)
Meiners, T., et al.: Proceedings of the seventh meeting on CPT and lorentz symmetry, pp 85–88. World Scientific, Singapore (2017)
Hannig, S., et al.: A highly stable monolithic enhancement cavity for second harmonic generation in the ultraviolet. Rev. Sci. Instrum. 89, 013106 (2018)
Brown, K.R., et al.: Coupled quantized mechanical oscillators. Nature 471, 196–199 (2011)
Acknowledgements
We acknowledge funding from QUEST, LUH, PTB, ERC StG “QLEDS”, and DFG through SFB 1227 “DQ-mat”.
We acknowledge support by Tobias Florin and Julian Pick in building laser systems and designing a proton source.
Author information
Authors and Affiliations
Corresponding author
Additional information
This article is part of the Topical Collection on Proceedings of the 13th International Conference on Low Energy Antiproton Physics (LEAP 2018) Paris, France, 12–16 March 2018
Edited by Paul Indelicato, Dirk van der Werf and Yves Sacquin
Rights and permissions
About this article
Cite this article
Meiners, T., Niemann, M., Mielke, J. et al. Towards sympathetic cooling of single (anti-)protons. Hyperfine Interact 239, 26 (2018). https://doi.org/10.1007/s10751-018-1502-6
Published:
DOI: https://doi.org/10.1007/s10751-018-1502-6