Journal
JOURNAL OF MOLECULAR SPECTROSCOPY
Volume 270, Issue 1, Pages 1-25Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jms.2011.06.007
Keywords
High-resolution spectroscopy; Radio-frequency; Fundamental symmetries; Stark and Zeeman interactions; Molecular ions
Funding
- NIST, NSF
- Marsico Chair of Excellence
- Direct For Mathematical & Physical Scien
- Division Of Physics [1125844] Funding Source: National Science Foundation
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High-resolution molecular spectroscopy is a sensitive probe for violations of fundamental symmetries. Symmetry violation searches often require, or are enhanced by, the application of an electric field to the system under investigation. This typically precludes the study of molecular ions due to their inherent acceleration under these conditions. Circumventing this problem would be of great benefit to the high-resolution molecular spectroscopy community since ions allow for simple trapping and long interrogation times, two desirable qualities for precision measurements. Our proposed solution is to apply an electric field that rotates at radio frequencies. We discuss considerations for experimental design as well as challenges in performing precision spectroscopic measurements in rapidly time-varying electric fields. Ongoing molecular spectroscopy work that could benefit from our approach is summarized. In particular, we detail how spectroscopy on a trapped diatomic molecular ion with a ground or metastable (3)Delta(1) level could prove to be a sensitive probe for a permanent electron electric dipole moment (eEDM). (C) 2011 Elsevier Inc. All rights reserved.
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