PRECISION SPECTROSCOPY OF TRAPPED HfF+ WITH A COHERENCE TIME OF 1 SECOND

Cossel, Kevin

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https://hdl.handle.net/2142/79277 Copy

Description

Title

PRECISION SPECTROSCOPY OF TRAPPED HfF+ WITH A COHERENCE TIME OF 1 SECOND

Author(s)

Cossel, Kevin

Contributor(s)

• Cornell, Eric
• Ye, Jun
• Zhou, Yan
• Gresh, Dan
• Grau, Matt
• Cairncross, William

Issue Date

22-Jun-15

Keyword(s)

Mini-symposium: High-Precision Spectroscopy

Abstract

Trapped molecular ions provide new systems for precision spectroscopy and tests of fundamental physics. For example, measurements of the permanent electric dipole moment of the electron (eEDM) test time-reversal symmetryfootnote{The ACME Collaboration, textit{et al.}, textit{Science} textbf{343}, 269 (2014)}. Currently, we are using Ramsey spectroscopy between spin states of the metastable $^3Delta_1$ state in trapped HfF$^+$ for a measurement of the eEDMfootnote{H. Loh, K. C. Cossel, M. C. Grau, K.-K. Ni, E. R. Meyer, J. L. Bohn, J. Ye, E. A. Cornell, textit{Science} textbf{342}, 1220 (2013).}$^,$footnote{A. E. Leanhardt, J. L. Bohn, H. Loh, M. C. Grau, P. Maletinski, E. R. Meyer, L. C. Sinclair, R. P. Stutz, E. A. Cornell, textit{J. Mol. Spec.} textbf{270}, 1 (2011).}. We are regularly performing spectroscopy with a Ramsey time of 500 ms yielding what, to our knowledge, is the narrowest spectral line observed in a molecular system. Here, we will provide an overview of the experiment and the current eEDM results.

Publisher

International Symposium on Molecular Spectroscopy

Type of Resource

text

Language

English

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http://hdl.handle.net/2142/79277

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