Prospect for precision quantum logic spectroscopy of vibrational overtone transitions in molecular oxygen ions

authored by: Fabian Wolf, Jan C. Heip, Maximilian J. Zawierucha, Chunyan Shi, Silke Ospelkaus, Piet O. Schmidt
Abstract: Precision spectroscopy has been the driving force for progress of our physical understanding and still is a promising tool for the investigation of new physics. Molecules offer transitions which allow tests that are not possible in atomic systems. However, usually precision spectroscopy of molecules is challenging due to the lack of cycling transitions for state preparation and state detection. For molecular ions, this obstacle can be overcome by quantum logic spectroscopy, where dissipation for state preparation and detection is provided by a co-trapped atomic ion exploiting the shared eigenstates of motion. Here, we propose a full quantum logic spectroscopy scheme for molecular oxygen ions and theoretically investigate the feasibility of quantum logic-assisted state detection and preparation. Furthermore, we provide coupling rates for a direct single-photon quadrupole excitation of a vibrational overtone transition that can serve as a sensitive reference for tests of a possible variation of the proton-to-electron mass ratio.
Organisation(s): Institute of Quantum Optics
QuantumFrontiers
CRC 1227 Designed Quantum States of Matter (DQ-mat)
External Organisation(s): National Metrology Institute of Germany (PTB)
Type: Article
Journal: New Journal of Physics
Volume: 26
No. of pages: 30
ISSN: 1367-2630
Publication date: 16.01.2024
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Physics and Astronomy(all)
Electronic version(s): https://doi.org/10.1088/1367-2630/ad1ad3 (Access: Open)
https://doi.org/10.1088/1367-2630/ad1ad3 (Access: Open)

BibTeX

@article{9a9fb2fcbcd549eeafe1d308ac9cc963,
title = "Prospect for precision quantum logic spectroscopy of vibrational overtone transitions in molecular oxygen ions",
abstract = "Precision spectroscopy has been the driving force for progress of our physical understanding and still is a promising tool for the investigation of new physics. Molecules offer transitions which allow tests that are not possible in atomic systems. However, usually precision spectroscopy of molecules is challenging due to the lack of cycling transitions for state preparation and state detection. For molecular ions, this obstacle can be overcome by quantum logic spectroscopy, where dissipation for state preparation and detection is provided by a co-trapped atomic ion exploiting the shared eigenstates of motion. Here, we propose a full quantum logic spectroscopy scheme for molecular oxygen ions and theoretically investigate the feasibility of quantum logic-assisted state detection and preparation. Furthermore, we provide coupling rates for a direct single-photon quadrupole excitation of a vibrational overtone transition that can serve as a sensitive reference for tests of a possible variation of the proton-to-electron mass ratio.",
keywords = "molecular ions, oxygen, quantum, quantum logic spectroscopy, spectroscopy",
author = "Fabian Wolf and Heip, {Jan C.} and Zawierucha, {Maximilian J.} and Chunyan Shi and Silke Ospelkaus and Schmidt, {Piet O.}",
note = "We thank E Tiemann and M Kajita for valuable discussions. This work has been funded by the Deutsche Forschungsgemeinschaft (German Research Foundation) through CRC 1227 (DQ-mat) - 274200144 , projects A04 and B05 with partial support from Germany's Excellence Strategy—EXC-2123 QuantumFrontiers - 390837967.",
year = "2024",
month = jan,
day = "16",
doi = "10.1088/1367-2630/ad1ad3",
language = "English",
volume = "26",
journal = "New Journal of Physics",
issn = "1367-2630",
publisher = "IOP Publishing Ltd.",
}