University of Illinois Urbana-Champaign

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

Cossel, Kevin

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1189.pdf
436363.pptx

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

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
Date of Ingest
2016-01-05T20:06:01Z
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
Genre of Resource
Conference Paper / Presentation
Language
English
Permalink
http://hdl.handle.net/2142/79277

Owning Collections

Abstracts & Presentations - 2015 International Symposium on Molecular Spectroscopy PRIMARY