Frequency-comb spectroscopy on pure quantum states of a single molecular ion
Abstract
Spectroscopy is a powerful tool that can identify chemical species used in a wide range of settings. Usually, the samples are formed of ensembles, and this can limit the resolution with which the different species can be detected or identified. Chou et al. demonstrate an optical frequency comb technique with a single pair of trapped ions, Ca + and CaH + , to obtain the rotational spectrum of a single trapped ion, CaH + . With the ions isolated and the ensemble interactions removed, the rotational structure of the trapped molecular ion can then be obtained with high precision. As the trapping and manipulation process is general, this technique could be applied to a number of chemical species for specific purposes.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Mar 27, 2020
- Source ID
- 10.1126/science.aba3628
Entities
People
- Alejandra Collopy
- C. Kurz
- Chin-Wen Chou
- D. Leibfried
- David Leibrandt
- Michael E Harding
- Philipp N Plessow
- Scott A. Diddams
- T. Fortier
- Yi-Heng Lin
Organizations
- 2011 Quantum Information and Quantum Technology Collaborative Innovation Center
- Alexander von Humboldt Foundation
- Army Research Office
- Hefei National Laboratory for Physical Sciences at the Microscale
- Karlsruhe Institute of Technology
- National Institute of Standards and Technology
- National Natural Science Foundation of China
- National Research Council
- University of Colorado
- University of Science and Technology of China